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Yang J, Chen R, Zhang Q, Zhang L, Li Q, Zhang Z, Wang Y, Qu B. Green and chemical-free pretreatment of corn straw using cold isostatic pressure for methane production. Sci Total Environ 2023; 897:165442. [PMID: 37442465 DOI: 10.1016/j.scitotenv.2023.165442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/19/2023] [Accepted: 07/08/2023] [Indexed: 07/15/2023]
Abstract
In this study, the effect of cold isostatic pressure (CIP) pretreatment on the physicochemical properties and subsequent anaerobic digestion (AD) performance of corn straw (CS) was explored. The CS was subjected to CIP pretreatment by pressures of 200, 400 and 600 MPa, respectively, while AD was carried out at medium temperature (35 ± 2 °C). The results showed that CIP pretreatment disrupted the dense structure of the CS and altered the crystallinity index and surface hydrophobicity of the CS, thereby affecting the AD process. The presence of CIP pretreatment increased the initial reducing sugar concentration by 0.11-0.27 g/L and increased the maximum volatile fatty acids content by 112.82-436.64 mg/L, which facilitated the process of acidification and hydrolysis of the AD. It was also observed that the CIP pretreatment maintained the pH in the range of 6.37-7.30, maintaining the stability of the overall system. Moreover, the cumulative methane production in the CIP pretreatment group increased by 27.17 %-64.90 % compared to the control group. Analysis of the microbial results showed that CIP pretreatment increased the abundance of cellulose degrading bacteria Ruminofilibacter from 21.50 % to 27.53 % and acetoclastic methanogen Methanosaeta from 45.48 % to 56.92 %, thus facilitating the hydrolysis and methanogenic stages. The energy conversion analysis showed that CIP is a green and non-polluting pretreatment strategy for the efficient AD of CS to methane.
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Affiliation(s)
- Jiancheng Yang
- College of Art and Science, Northeast Agr Univ, Harbin 150030, People's Republic of China
| | - Ruijie Chen
- College of Art and Science, Northeast Agr Univ, Harbin 150030, People's Republic of China
| | - Quanguo Zhang
- Huanghe S&T Univ, Inst Agr Engn, Zhengzhou 450006, People's Republic of China; Henan Agr Univ, Key Lab New Mat & Facil Rural Renewable Energy, MOA China, Zhengzhou 450002, People's Republic of China
| | - Linhai Zhang
- Taiyuan Donglong Machinery Co., Ltd., Taiyuan 030013, People's Republic of China
| | - Qichen Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, People's Republic of China
| | - Zhiyun Zhang
- College of Animal Medicine, Northeast Agr Univ, Harbin 150030, People's Republic of China
| | - Yuxin Wang
- College of Art and Science, Northeast Agr Univ, Harbin 150030, People's Republic of China
| | - Bin Qu
- College of Art and Science, Northeast Agr Univ, Harbin 150030, People's Republic of China.
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Hussain S, Chen M, Liu Y, Mustafa G, Wang X, Liu J, Sheikh TMM, Bano H, Yasoob TB. Composition and assembly mechanisms of prokaryotic communities in wetlands, and their relationships with different vegetation and reclamation methods. Sci Total Environ 2023; 897:166190. [PMID: 37567310 DOI: 10.1016/j.scitotenv.2023.166190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/26/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
Coastal wetlands are undergoing substantial transformations globally as a result of increased human activities. However, compared to other ecosystems, diversity and functional characteristics of microbial communities in reclaimed coastal wetlands are not well studied compared to other ecosystems. This is important because it is known that microorganisms can play a crucial role in biogeochemical cycling within coastal wetland ecosystems. Hence, this study utilized the high-throughput sequencing technique to investigate the structure and assembly processes of microbial communities in reclaimed coastal wetlands. The results revealed a substantial change in soil properties following coastal wetland reclamation. Remarkably, the reclaimed soil exhibited significantly lower pH, soil organic carbon (SOC), and total salinity (TS) values (p < 0.05). The dominant phyla included Proteobacteria, Chloroflexi, Bacteroidetes, Acidobacteria, and Planctomycetes among study sites. However, the relative abundance of Proteobacteria increased from un-reclaimed coastal wetlands to reclaimed ones. The Proteobacteria, Chloroflexi, and Acidobacteria showed higher relative abundance in vegetated soil compared to bare soil, while Bacteroidetes and Planctomycetes exhibited the opposite trend. Notably, vegetation types exerted the strongest influence on microbial diversity, surpassing the effects of soil types and depth (F = 34.49, p < 0.001; F = 25.49, p < 0.001; F = 3.173, p < 0.078, respectively). Stochastic assembly processes dominated in un-reclaimed soil, whereas deterministic processes governed the assembly in artificial sea embankment wetlands (SEW). The presence of Spartina alterniflora in all soil types (except SEW soils) indicated stochastic assembly, while Phragmites australis in reclaimed soils pointed toward deterministic microbial assembly. Furthermore, environmental factors such as pH, soil water content (SWC), SOC, total carbon (TC), total nitrogen (TN), total phosphorus (TP), NH4+-N, vegetation types, soil depth, and geographic distance exhibited significant effects on microbial beta diversity indices. Co-occurrence network analysis revealed a stronger association between taxa in SEW compared to land reclaimed from wetlands (LRW) and natural coastal wetlands (NCW). The bottom soil layer exhibited more complex network interactions than the topsoil layer. Besides soil parameters, reclamation and varieties of vegetation were also substantial factors influencing the composition, diversity, and assembly processes of microbial communities in coastal wetlands.
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Affiliation(s)
- Sarfraz Hussain
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Min Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Yuhong Liu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
| | - Ghulam Mustafa
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Xue Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Jiayuan Liu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Taha Majid Mahmood Sheikh
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; Institute of Plant Protection, Jiangsu Academy of Agriculture Sciences, Nanjing, China
| | - Hamida Bano
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; Department of animal sciences, Faculty of agricultural Sciences, Ghazi university, Dera Ghazi Khan, Pakistan
| | - Talat Bilal Yasoob
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; Department of Zoology, University of Education, Lahore, Pakistan
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103
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Abbaszade G, Toumi M, Farkas R, Vajna B, Krett G, Dobosy P, Szabó C, Tóth E. Exploring the relationship between metal(loid) contamination rate, physicochemical conditions, and microbial community dynamics in industrially contaminated urban soils. Sci Total Environ 2023; 897:166094. [PMID: 37582445 DOI: 10.1016/j.scitotenv.2023.166094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/04/2023] [Accepted: 08/04/2023] [Indexed: 08/17/2023]
Abstract
Increasing metal(loid) contamination in urban soils and its impact on soil microbial community have attracted considerable attention. In the present study, the physicochemical parameters and the effects of twelve metal(loid) pollution on soil microbial diversity, their ecotoxic effects, and human health risk assessment in urban soils with different industrial background were studied in comparison with an unpolluted forest soil sample. Results showed that urban soils were highly contaminated, and metal(loid) contamination significantly influenced structure of the soil microbial communities. In all samples the bacterial community was dominated by Proteobacteria, and on the level of phyla characteristic differences were not possible to observe between polluted and control sampling sites. However, clear differences emerged at class and genus level, where several rare taxa disappeared from contaminated urban soils. Simper test results showed that there is 71.6 % bacterial OTU and 9.5 % bacterial diversity dissimilarity between polluted and control samples. Ratio of Patescibacteria, Armatimonadetes, Chlamydiae, Fibrobacteres, and Gemmatimonadetes indicated a significant (p < 0.05) positive correlation with soil Zn, Cr, Pb, Sn, Cu, Mn content, suggest that metal(loid)s strongly influence the structure of microbial community. In contrast, the presence of metal(loid) contamination in urban soils has been found to significantly reduce the population of Archaeal communities. This can be attributed to the depletion of organic matter caused by contamination that reached a minimum of 0.5 m/m% for nitrate and 0.9 m/m% for total organic carbon. The values of urban soil pH were close to neutral, ranging from 5.9 to 8.3. The findings of ecotoxicology test are alarming, as all the studied urban soil sites were cytotoxic to soil microorganisms, and in one site metal(loid) contamination reached genotoxic level. Moreover, all the metal(loid) contaminated sites pose severe and persistent health risk to children, highlighting the urgent need for effective measures to mitigate metal(loid) pollution in urban areas.
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Affiliation(s)
- Gorkhmaz Abbaszade
- Department of Microbiology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary; Lithosphere Fluid Research Lab, Institute of Geography and Earth Sciences, Eötvös Loránd University, Budapest, Hungary.
| | - Marwene Toumi
- Department of Microbiology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - Rózsa Farkas
- Department of Microbiology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - Balázs Vajna
- Department of Microbiology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - Gergely Krett
- Department of Microbiology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - Péter Dobosy
- Institute of Aquatic Ecology, Centre for Ecological Research, Budapest, Hungary
| | - Csaba Szabó
- Lithosphere Fluid Research Lab, Institute of Geography and Earth Sciences, Eötvös Loránd University, Budapest, Hungary
| | - Erika Tóth
- Department of Microbiology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
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Tadielo LE, Dos Santos EAR, Possebon FS, Schmiedt JA, Juliano LCB, Cerqueira-Cézar CK, de Oliveira JP, Sampaio ANDCE, Melo PRL, Caron EFF, Pinto JPDAN, Bersot LDS, Pereira JG. Characterization of microbial ecology, Listeria monocytogenes, and Salmonella sp. on equipment and utensil surfaces in Brazilian poultry, pork, and dairy industries. Food Res Int 2023; 173:113422. [PMID: 37803760 DOI: 10.1016/j.foodres.2023.113422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/09/2023] [Accepted: 08/29/2023] [Indexed: 10/08/2023]
Abstract
This study aimed to evaluate the level of counting by indicator microorganisms, identify the microbial ecology, detect Listeria monocytogenes and Salmonella sp., and determine the presence of virulence genes and biofilm formation. A total of 480 samples were collected from the surfaces of the equipment and utensils using sterile swabs for the detection of L. monocytogenes and Salmonella sp. and counting mesophilic aerobes, Enterobacteriaceae, Escherichia coli, and Pseudomonas sp. The microbial ecology was evaluated by sequencing the 16S rRNA gene. Genes for virulence and biofilm formation were analyzed and adhesion capacity was evaluated for L. monocytogenes and Salmonella sp. The mesophilic aerobe count was the highest in the dairy processing facility, followed by the pork and poultry slaughterhouses. L. monocytogenes was detected in all facilities, with the highest detection in the pork slaughterhouse, followed by the poultry and dairy facilities. Salmonella sp. was only detected in the dairy. Isolates of L. monocytogenes and Salmonella sp. showed poor adhesion to polystyrene surfaces, virulence genes, and biofilm formation. The frequent contaminants in the slaughterhouses were Pseudomonas, Acinetobacter, and Aeromonas in poultry, Acinetobacter, Pseudomonas, and Brevundimonas in pork, and Pseudomonas, Kocuria, and Staphylococcus in dairy. Our results provide useful information to understand the microbiological risks associated with contamination.
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Affiliation(s)
- Leonardo Ereno Tadielo
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Emanoelli Aparecida Rodrigues Dos Santos
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Fábio Sossai Possebon
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Jhennifer Arruda Schmiedt
- Federal University of Paraná (UFPR), Palotina Campus, Department of Veterinary Sciences, Rua Pioneiro, 2153, Jardim Dallas, 85950-000 Palotina, PR, Brazil
| | - Lara Cristina Bastos Juliano
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Camila Koutsodontis Cerqueira-Cézar
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Janaina Prieto de Oliveira
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Aryele Nunes da Cruz Encide Sampaio
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Patrícia Regina Lopes Melo
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Evelyn Fernanda Flores Caron
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - José Paes de Almeida Nogueira Pinto
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil
| | - Luciano Dos Santos Bersot
- Federal University of Paraná (UFPR), Palotina Campus, Department of Veterinary Sciences, Rua Pioneiro, 2153, Jardim Dallas, 85950-000 Palotina, PR, Brazil.
| | - Juliano Gonçalves Pereira
- São Paulo State University (UNESP), Botucatu Campus, School of Veterinary Medicine and Animal Science, Distrito de Rubião Jr, SN, 18618-681 Botucatu, São Paulo, Brazil.
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105
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Gusmão ACB, Peres FV, Paula FS, Pellizari VH, Kolm HE, Signori CN. Microbial communities in the deep-sea sediments of the South São Paulo Plateau, Southwestern Atlantic Ocean. Int Microbiol 2023; 26:1041-1051. [PMID: 37093322 DOI: 10.1007/s10123-023-00358-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/25/2023]
Abstract
Microbial communities play a key role in the ocean, acting as primary producers, nutrient recyclers, and energy providers. The São Paulo Plateau is a region located on the southeastern coast of Brazil within economic importance, due to its oil and gas reservoirs. With this focus, this study examined the diversity and composition of microbial communities in marine sediments located at three oceanographic stations in the southern region of São Paulo Plateau using the HOV Shinkai 6500 in 2013. The 16S rRNA gene was sequenced using the universal primers (515F and 926R) by the Illumina Miseq platform. The taxonomic compositions of samples recovered from SP3 station were markedly distinct from those obtained from SP1 and SP2. Although all three stations exhibited a high abundance of Gammaproteobacteria (> 15%), this taxon dominated more than 90% of composition of the A and C sediment layers at SP3. The highest abundance of the archaeal class Nitrososphaeria was presented at SP1, mainly at layer C (~ 21%), being absent at SP3 station. The prediction of chemoheterotrophy and fermentation as important microbial functions was supported by the data. Additionally, other metabolic pathways related to the cycles of nitrogen, carbon and sulfur were also predicted. The core microbiome analysis comprised only two ASVs. Our study contributes to a better understanding of microbial communities in an economically important little-explored region. This is the third microbiological survey in plateau sediments and the first focused on the southern region.
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Affiliation(s)
- Ana Carolina Bercini Gusmão
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça Do Oceanográfico, 191. CEP: 05508-120, São Paulo, Brazil.
| | - Francielli Vilela Peres
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça Do Oceanográfico, 191. CEP: 05508-120, São Paulo, Brazil
| | - Fabiana S Paula
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça Do Oceanográfico, 191. CEP: 05508-120, São Paulo, Brazil
| | - Vivian Helena Pellizari
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça Do Oceanográfico, 191. CEP: 05508-120, São Paulo, Brazil
| | - Hedda Elisabeth Kolm
- Department of Oceanography, Center for Marine Studies, Federal University of Paraná, Pontal do Paraná, Brazil
| | - Camila Negrão Signori
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça Do Oceanográfico, 191. CEP: 05508-120, São Paulo, Brazil
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106
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Wang K, Zhang H, Shen Y, Li J, Zhou W, Song H, Liu M, Wang H. Impact of salinity on anaerobic ceramic membrane bioreactor for textile wastewater treatment: Process performance, membrane fouling and machine learning models. J Environ Manage 2023; 345:118717. [PMID: 37536141 DOI: 10.1016/j.jenvman.2023.118717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/25/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
Anaerobic membrane bioreactor (AnMBR) shows great potential for textile wastewater treatment, but high salinity in the influent may undermine its performance. This study evaluated the impact of salinity on the treatment performance of an upflow anaerobic sludge blanket (UASB) configured AnMBR using a flat sheet ceramic membrane. The salinity was stepwise increased (0, 5, 10 and 20 g/L) in four phases of the AnMBR operation. Results indicated that increased salinity jeopardized the COD removal efficiency of AnMBR from 92% to 73%, but had a marginal effect on dye removal efficacy (90-96%). Low salinity (5 g/L) boosted the biogas production whilst high salinity (>10 g/L) had a negative impact. Additionally, the increase of salinity resulted in the soluble microbial production (SMP) concentration soar and membrane fouling rate increase, peaking at a salinity of 10 g/L (Phase III) and recovering back to a lower level at a salinity of 20 g/L (Phase IV). This indicated a transition occurrence at a salinity of 10 g/L (Phase III). The microbial diversity analyses further suggested a transition from salinity-sensitive microbes (Aminiphilus, Caldatribacterium, Mesotoga, Methanobrevibacter, Methanobacterium, Methanosaeta) to salinity-tolerant microbes (Longilinea, Ignavibacterium, Rhodovarius, Bosea and Flexilinea). This transition can be associated with the increase SMP concentration and more severe membrane fouling in Phase III, which were mitigated after a new equilibrium was reached when the microbial consortium acclimatized to the high salinity. Finally, a machine learning model of the Adaboost algorithm was established to predict COD removal under different salinities. Importantly, this study revealed that AnMBR process performance and membrane operation can be maintained for high salinity textile wastewater treatment with a halophilic microbial community growth under high-salinity selection pressure.
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Affiliation(s)
- Kanming Wang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China; College of Architecture and Environment, Sichuan University, Chengdu, 610000, China; Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing, 312000, Zhejiang, China
| | - Haoliang Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yuxiang Shen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jiale Li
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Wu Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hualong Song
- Shaoxing Water Treatment Development Co., Ltd, Shaoxing, 312074, Zhejiang, China
| | - Min Liu
- College of Architecture and Environment, Sichuan University, Chengdu, 610000, China
| | - Hongyu Wang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China.
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Xia H, Riaz M, Babar S, Yan L, Li Y, Wang X, Wang J, Jiang C. " Assessing the impact of biochar on microbes in acidic soils: Alleviating the toxicity of aluminum and acidity". J Environ Manage 2023; 345:118796. [PMID: 37579602 DOI: 10.1016/j.jenvman.2023.118796] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 08/16/2023]
Abstract
In arable soils, anthropogenic activities such as fertilizer applications have intensified soil acidification in recent years. This has resulted in frequent environmental problems such as aluminum (Al) and H+ stress, which negatively impact crop yields and quality in acidic soils. Biochar, as a promising soil conditioner, has attracted much attention globally. The present study was conducted in a greenhouse by setting up 2% biochar rate to investigate how biochar relieves Al3+ hazards in acidic soil by affecting soil quality, soil environment, and soil microbiomes. The addition of biochar significantly improved soil fertility and enzyme activities, which were attributed to its ability to enhance the utilization of soil carbon sources by influencing the activity of soil microorganisms. Moreover, the Al3+ contents were significantly decreased by 66.61-88.83% compared to the C0 level (without biochar treatment). In particular, the results of the 27Al NMR suggested that forms of AlVI (Al(OH)2+, Al(OH)+ 2, and Al3+) were increased by 88.69-100.44% on the surface of biochar, reducing the Al3+ stress on soil health. The combination of biochar and nitrogen (N) fertilizer contributed to the augmentation of bacterial diversity. The application of biochar and N fertilizer increased the relative abundance of the majority of bacterial species. Additionally, the application of biochar and N fertilizer had a significant impact on soil microbial metabolism, specifically in the biosynthesis of secondary metabolites (lipids and organic acids) and carbon metabolic ability. In conclusion, biochar can enhance soil microbial activity and improve the overall health of acidic soil by driving microbial metabolism. This study offers both theoretical and technical guidance for enhancing biochar in acidified soil and promoting sustainable development in farmland production.
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Affiliation(s)
- Hao Xia
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China
| | - Muhammad Riaz
- College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, PR China
| | - Saba Babar
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China
| | - Lei Yan
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China
| | - Yuxuan Li
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China
| | - Xiangling Wang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China; The Key Laboratory of Oasis Ecoagriculture, Xinjiang Production and Construction Corps, Shihezi University, Shihezi, Xinjiang, 832000, PR China
| | - Jiyuan Wang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China
| | - Cuncang Jiang
- Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China; The Key Laboratory of Oasis Ecoagriculture, Xinjiang Production and Construction Corps, Shihezi University, Shihezi, Xinjiang, 832000, PR China.
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108
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Liu L, Liu S, Zhu S, Zhou X, Ma Y, Pan N, Li D, Li Y, Li C. Effects of different concentrations of biological maturity agents on nitrogen and microbial diversity of Auricularia heimuer residue compost. Bioresour Technol 2023; 388:129641. [PMID: 37634671 DOI: 10.1016/j.biortech.2023.129641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/01/2023] [Accepted: 08/05/2023] [Indexed: 08/29/2023]
Abstract
This study investigated the effects of different concentrations of biological maturity agents on the composting process of Auricularia heimuer residue by adding them to the composting process. By measuring the changes in physical and chemical indicators and microbial diversity during composting, the results showed that the addition of biological maturity agents had a certain promoting effect on compost temperature, humidity, pH, seed germination index, and vitality index. Appropriate composting days can promote the accumulation of ammonium nitrogen. The carbon content of humin and E4/E6 of treatments A, B, and E were significantly higher than those of the initial treatment. D0.CK treatment had the most types of resistance genes and the most abundant resistance genes. As composting progresses, the abundance of 13 resistance genes decreased. Adding high concentrations of biological maturity agents can activate the defense mechanism during the composting process, greatly ensuring the safety of fungi residue as a fertilizer.
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Affiliation(s)
- Lingyun Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Shuai Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Shurui Zhu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Xiaoyan Zhou
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Yongsheng Ma
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Niangang Pan
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Dan Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; International Joint Research Center for the creation of new edible mushroom germplasm resources, Ministry of science and technology, Jilin Agricultural University, Changchun 130118, China
| | - Yu Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; International Joint Research Center for the creation of new edible mushroom germplasm resources, Ministry of science and technology, Jilin Agricultural University, Changchun 130118, China
| | - Changtian Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; International Joint Research Center for the creation of new edible mushroom germplasm resources, Ministry of science and technology, Jilin Agricultural University, Changchun 130118, China.
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109
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Huang Y, Tang J, Cai Z, Qi Y, Jiang S, Ma T, Yue Y, Huang F, Yang H, Ma Y. Alterations in the intestinal microbiota associated with active tuberculosis and latent tuberculosis infection. Heliyon 2023; 9:e22124. [PMID: 38045157 PMCID: PMC10692819 DOI: 10.1016/j.heliyon.2023.e22124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 10/24/2023] [Accepted: 11/05/2023] [Indexed: 12/05/2023] Open
Abstract
Objectives To study the characteristics of intestinal microbiota at different stages of Mycobacterium tuberculosis infection. Methods Fecal samples of 19 active tuberculosis (ATB) patients, 21 latent tuberculosis infection (LTBI) individuals, and 20 healthy controls (HC) were collected. Gut microbiota of all the participants were analyzed by 16S rDNA sequencing. Clinical information of ATB patients was also collected and analyzed. Results Both ATB and LTBI groups showed significant decreases in microbial diversity and decline of Clostridia. For ATB patients, bacteria within phylum Proteobacteria increased. While for LTBI individuals, genera Prevotella and Rosburia enriched. The abundance of Faecalibacterium, Clostridia and Gammaproteobacteria has the potential to diagnose ATB, with the area under the curve (AUC) of 0.808, 0.784 and 0.717. And Prevotella and Rosburia has the potential to diagnose LTBI, with the AUC of 0.689 and 0.689. Notably, in ATB patients, the relative abundance of Blautia was negatively correlated with the proportions of peripheral T cells and CD8+T cells. And serum direct bilirubin was positively correlated with Bacteroidales, while negatively correlated with Clostridiales in ATB patients. Conclusions The specifically changed bacteria are promising markers for ATB and LTBI diagnosis. Some gut bacteria contribute to anti-MTB immunity through interactions with T cells and bilirubin.
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Affiliation(s)
- Yuan Huang
- Department of Clinical Laboratory, Air Force Medical Center, Beijing, 100142, China
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Jinhua Tang
- Department of Clinical Laboratory, Air Force Medical Center, Beijing, 100142, China
| | - Zheng Cai
- Department of Clinical Laboratory, Air Force Medical Center, Beijing, 100142, China
| | - Yun Qi
- Department of Gynecology & Pediatrics, Xi'an Chest Hospital, Xi'an, Shaanxi Province, 710100, China
| | - Shen Jiang
- Department of Gynecology & Pediatrics, Xi'an Chest Hospital, Xi'an, Shaanxi Province, 710100, China
| | - Tingting Ma
- Department of Gynecology & Pediatrics, Xi'an Chest Hospital, Xi'an, Shaanxi Province, 710100, China
| | - Ying Yue
- Department of Gynecology & Pediatrics, Xi'an Chest Hospital, Xi'an, Shaanxi Province, 710100, China
| | - Fang Huang
- Department of Clinical Laboratory, Xi'an Chest Hospital, Xi'an, Shaanxi Province, 710100, China
| | - Han Yang
- Department of Clinical Laboratory, Xi'an Chest Hospital, Xi'an, Shaanxi Province, 710100, China
| | - Yueyun Ma
- Department of Clinical Laboratory, Air Force Medical Center, Beijing, 100142, China
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Abstract
BACKGROUND The gut microbiota is increasingly recognized as a crucial factor in human health and disease. Metformin, a commonly prescribed medication for type 2 diabetes, has been studied for its potential impact on the gut microbiota in preclinical models. However, the effects of metformin on the gut microbiota in humans remain uncertain. SCOPE OF REVIEW We conducted a systematic review of clinical trials and observational studies to assess the existing knowledge on the impact of metformin on the gut microbiota in humans. The review focused on changes in bacterial composition and diversity following metformin treatment. MAJOR CONCLUSIONS Thirteen studies were included in the analysis. The results revealed alterations in the abundance of bacterial genera from various phyla, suggesting that metformin may selectively influence certain groups of bacteria in the gut microbiota. However, the effects on gut microbiota diversity were inconsistent across populations, with conflicting findings on changes in alpha and beta diversity measures. Overall, the use of metformin was associated with changes in the abundance of specific bacterial genera within the gut microbiota of human populations. However, the effects on gut microbiota diversity were not consistent, highlighting the need for further research to understand the underlying mechanisms and clinical significance of these changes.
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Affiliation(s)
- Pavlo Petakh
- Department of Biochemistry and Pharmacology, Uzhhorod National University, Uzhhorod, Ukraine; Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine.
| | - Iryna Kamyshna
- Department of Medical Rehabilitation, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Aleksandr Kamyshnyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine.
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Wu Z, Zhang F, Ding W, Wang K, Peng J, Cao N, He C. Native forests transformed into cash crops reduced soil multi-functionality by modifying the microbial community composition and keystone species' abundance in the Jianghuai Hilly Region. Environ Sci Pollut Res Int 2023; 30:113747-113757. [PMID: 37851254 DOI: 10.1007/s11356-023-30196-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 09/27/2023] [Indexed: 10/19/2023]
Abstract
Conversion of native forest to cash crops is the predominant form of land use change in the Jianghuai Hilly Region. However, how plantations with different cash crops affect the soil multi-functionality is not well documented. In this study, we collected three kinds of cash crops soils (vegetable, orchard, and tea) and forest soil, to systematically review the relationship between soil microbial communities and soil multi-functionality. Soil multi-functionality had decreased in vegetable and orchard as compared to native forest, whereas tea plantation had no significant effects on soil multi-functionality. The results also showed that cash crop plantations decreased soil multi-functionality by shifting keystone species' abundance, for forest, vegetable, and orchard, the keystone species that were classified as module hubs in the bacterial co-occurrence network significantly negatively contributed to soil multi-functionality, but the keystone species categorized as module hubs in fungal co-occurrence network positively affected soil multi-functionality. Multiple soil properties were the drivers of the soil microbial community; thus, indicating that the altered soil properties under cash crop plantations were vital in determining microbial composition and biological processes. These results identified that sustainable management strategy in cash crop plantation needed to be developed for improving soil multi-functionality.
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Affiliation(s)
- Zhen Wu
- School of Geographic Information and Tourism, Chuzhou University, Chuzhou, 239000, China
| | - Futian Zhang
- School of Geographic Information and Tourism, Chuzhou University, Chuzhou, 239000, China
| | - Wen Ding
- School of Geographic Information and Tourism, Chuzhou University, Chuzhou, 239000, China
| | - Kai Wang
- School of Geographic Information and Tourism, Chuzhou University, Chuzhou, 239000, China
| | - Jun Peng
- School of Geographic Information and Tourism, Chuzhou University, Chuzhou, 239000, China
| | - Ni Cao
- Hunan University of Humanities, Science and Technology, Loudi, 417000, China
| | - Chenggang He
- College of Tobacco Science, Yunnan Agricultural University, Kunming, 650000, China.
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Wu W, Li Y, Zhu X, Wang L, Wang J, Qin Y, Zhang M, Yu C, Gou C, Yan X. Antimicrobial activity enabled by chitosan-ε-polylysine-natamycin and its effect on microbial diversity of tomato scrambled egg paste. Food Chem X 2023; 19:100872. [PMID: 37780335 PMCID: PMC10534210 DOI: 10.1016/j.fochx.2023.100872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 10/03/2023] Open
Abstract
For a long time, food spoilage posed a severe impairment on food safety and public health. Although chemical preservatives are commonly used to inhibit spoilage/ pathogenic microbial growth, the disadvantages of a single target, potential toxicity and high dose of use limit the better use of preservatives. In this research, the combination of natural preservatives: Natamycin (Nat), ε-polylysine (ε-PL), and Chitosan (CS) could achieve an excellent antimicrobial effect including bacteria and fungi, and reduce the usage of a single preservative. Compound preservatives could destroy microbial morphology and damage the integrity of the cell wall/membrane by leakage of protein and alkaline phosphatase (AKP). Besides, high-throughput sequencing revealed that compound preservatives could decrease microbial diversity and richness, especially, Pseudomonas, Acinetobacter, Fusarium, and Aspergillus. Therefore, the combination of 1/8 × MIC CS, 1/4 × MIC ε-PL, and 1/2 × MIC Nat can achieve an excellent antibacterial effect, providing new ideas for food preservation.
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Affiliation(s)
- Wanfeng Wu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Yaru Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Xiaoyu Zhu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Liang Wang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Jiayi Wang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Yanan Qin
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Minwei Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Urumqi 830046, China
| | - Chunshan Yu
- Xinjiang Xiaochu Food Co., Ltd., Changji 831100, China
| | - Chunmei Gou
- Xinjiang Xiaochu Food Co., Ltd., Changji 831100, China
| | - Xiaoqin Yan
- Xinjiang Xiaochu Food Co., Ltd., Changji 831100, China
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Hlangwani E, Abrahams A, Masenya K, Adebo OA. Analysis of the bacterial and fungal populations in South African sorghum beer (umqombothi) using full-length 16S rRNA amplicon sequencing. World J Microbiol Biotechnol 2023; 39:350. [PMID: 37864040 PMCID: PMC10589195 DOI: 10.1007/s11274-023-03764-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 09/14/2023] [Indexed: 10/22/2023]
Abstract
There is a need to profile microorganisms which exist pre-and-post-production of umqombothi, to understand its microbial diversity and the interactions which subsequently influence the final product. Thus, this study sought to determine the relative microbial abundance in umqombothi and predict the functional pathways of bacterial and fungal microbiota present. Full-length bacterial 16S rRNA and internal transcribed spacer (ITS) gene sequencing using PacBio single-molecule, real-time (SMRT) technology was used to assess the microbial compositions. PICRUSt2 was adopted to infer microbial functional differences. A mixture of harmful and beneficial microorganisms was observed in all samples. The microbial diversity differed significantly between the mixed raw ingredients (MRI), customary beer brew (CB), and optimised beer brew (OPB). The highest bacterial species diversity was observed in the MRI, while the highest fungal species diversity was observed in the OPB. The dominant bacterial species in the MRI, CB, and OPB were Kosakonia cowanii, Apilactobacillus pseudoficulneus, and Vibrio alginolyticus, respectively, while the dominant fungal species was Apiotrichum laibachii. The predicted functional annotations revealed significant (p < 0.05) differences in the microbial pathways of the fermented and unfermented samples. The most abundant pathways in the MRI were the branched-chain amino acid biosynthesis super pathway and the pentose phosphate pathway. The CB sample was characterised by folate (vitamin B9) transformations III, and mixed acid fermentation. Biotin (vitamin B7) biosynthesis I and L-valine biosynthesis characterised the OPB sample. These findings can assist in identifying potential starter cultures for the commercial production of umqombothi. Specifically, A. pseudoficulneus can be used for controlled fermentation during the production of umqombothi. Likewise, the use of A. laibachii can allow for better control over the fermentation kinetics such as carbohydrate conversion and end-product characteristics, especially esters and aroma compounds.
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Affiliation(s)
- Edwin Hlangwani
- Food Innovation Research Group, Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein Campus, Johannesburg, South Africa
| | - Adrian Abrahams
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein Campus, Johannesburg, South Africa
| | - Kedibone Masenya
- Neuroscience Institute, University of Cape Town, Private Bag X3, Rondebosch, Cape Town, 7701, South Africa
| | - Oluwafemi Ayodeji Adebo
- Food Innovation Research Group, Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein Campus, Johannesburg, South Africa.
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Bushra R, Ahmed I, Li JL, Lian Z, Li S, Ali A, Uzair B, Amin A, Ehsan M, Liu YH, Li WJ. Untapped rich microbiota of mangroves of Pakistan: diversity and community compositions. Folia Microbiol (Praha) 2023:10.1007/s12223-023-01095-3. [PMID: 37843797 DOI: 10.1007/s12223-023-01095-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/11/2023] [Indexed: 10/17/2023]
Abstract
The mangrove ecosystem is the world's fourth most productive ecosystem in terms of service value and offering rich biological resources. Microorganisms play vital roles in these ecological processes, thus researching the mangroves-microbiota is crucial for a deeper comprehension of mangroves dynamics. Amplicon sequencing that targeted V4 region of 16S rRNA gene was employed to profile the microbial diversities and community compositions of 19 soil samples, which were collected from the rhizosphere of 3 plant species (i.e., Avicennia marina, Ceriops tagal, and Rhizophora mucronata) in the mangrove forests of Lasbela coast, Pakistan. A total of 67 bacterial phyla were observed from three mangroves species, and these taxa were classified into 188 classes, 453 orders, 759 families, and 1327 genera. We found that Proteobacteria (34.9-38.4%) and Desulfobacteria (7.6-10.0%) were the dominant phyla followed by Chloroflexi (6.6-7.3%), Gemmatimonadota (5.4-6.8%), Bacteroidota (4.3-5.5%), Planctomycetota (4.4-4.9%) and Acidobacteriota (2.7-3.4%), Actinobacteriota (2.5-3.3%), and Crenarchaeota (2.5-3.3%). After considering the distribution of taxonomic groups, we prescribe that the distinctions in bacterial community composition and diversity are ascribed to the changes in physicochemical attributes of the soil samples (i.e., electrical conductivity (ECe), pH, total organic matter (OM), total organic carbon (OC), available phosphorus (P), and extractable potassium (CaCO3). The findings of this study indicated a high-level species diversity in Pakistani mangroves. The outcomes may also aid in the development of effective conservation policies for mangrove ecosystems, which have been hotspots for anthropogenic impacts in Pakistan. To our knowledge, this is the first microbial research from a Pakistani mangrove forest.
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Affiliation(s)
- Rabia Bushra
- National Culture Collection of Pakistan (NCCP), Land Resources Research Institute (LRRI), National Agriculture Research Center (NARC), Islamabad 45500, Pakistan
- Department of Biological Sciences, International Islamic University, Islamabad 44000, Pakistan
| | - Iftikhar Ahmed
- National Culture Collection of Pakistan (NCCP), Land Resources Research Institute (LRRI), National Agriculture Research Center (NARC), Islamabad 45500, Pakistan.
| | - Jia-Ling Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Zhenghan Lian
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Shuai Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Ahmad Ali
- National Culture Collection of Pakistan (NCCP), Land Resources Research Institute (LRRI), National Agriculture Research Center (NARC), Islamabad 45500, Pakistan
| | - Bushra Uzair
- Department of Biological Sciences, International Islamic University, Islamabad 44000, Pakistan
| | - Arshia Amin
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad 45500, Pakistan
| | | | - Yong-Hong Liu
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, People's Republic of China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, People's Republic of China.
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115
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Ye S, Tian Z, Ma W, Gao X, Chen H, Yang J, Ma C, Zhang Y, Zhou Z. Rapid response of midgut bacteria in Bactrocera tau (Walker) (Diptera: Tephritidae) to lambda-cyhalothrin- and spinosad-induced stress. Ecotoxicol Environ Saf 2023; 265:115502. [PMID: 37742569 DOI: 10.1016/j.ecoenv.2023.115502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023]
Abstract
In recent decades, the increasingly widespread application of chemical pesticides has exacerbated the emergence of insecticide resistance among insect pests. In this study, we examined the rapid response of bacteria in the midgut of the fruit fly Bactrocera tau (Walker) (Diptera: Tephritidae) to stress induced by the insecticides lambda-cyhalothrin and spinosad by analyzing the bacterial community structure and diversity in the midguts of 4-day-old B. tau. The results revealed that 4-day-old B. tau females were more resistant to lambda-cyhalothrin and spinosad than their 4-day-old male counterparts. Alpha- and beta-diversity analyses revealed no significant differences between male and female B. tau with respect to the diversity and richness of gut bacteria in response to the same treatments. In response to treatment with lambda-cyhalothrin and spinosad at lethal concentration 50 (LC50), we detected significant changes in the structure and diversity of the bacterial community in the midguts of both male and female B. tau. Particularly among the dominant bacterial genera, there were decreases in the relative abundances of Citrobacter, Enterobacter, Klebsiella, and Pectobacterium. Increases were observed in the relative abundances of Dysgonomonas, Erwinia, and Providencia. Our findings provide a theoretical basis for gaining a better understanding of the relationships between midgut bacteria and the insecticide resistance of B. tau.
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Affiliation(s)
- Suzhen Ye
- College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Zhenya Tian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China
| | - Weihua Ma
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xuyuan Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China; Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Hongsong Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China; Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Jingfang Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China
| | - Chao Ma
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China
| | - Yan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China
| | - Zhongshi Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572019, China.
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116
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Qian X, Tang X, Tian W, Xiao X, Wang Y, Lv Q, Li H, Feng S. Climate factors and host chemical profiles jointly drives the bacterial community assembly in Mussaenda pubescens stems. Environ Res 2023; 235:116687. [PMID: 37467942 DOI: 10.1016/j.envres.2023.116687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/08/2023] [Accepted: 07/15/2023] [Indexed: 07/21/2023]
Abstract
Endophytic bacteria residing within host plants can significantly impact on the host's growth, health, and overall relationship with its surrounding environment. However, the process that shape the community assembly of stem bacterial endophytes (SBEs) remains poorly understood. This study explored the community structure, co-occurrence patterns, and ecological processes of the SBEs inhabiting the shrub host, Mussaenda pubescens, across seven locations in southeastern China. We found that the absolute abundances, alpha diversity, and community composition of SBE communities exhibited notable differences among various host populations. Stem chemical characteristics were the most important factors influencing SBE community distribution, followed by geographic distance and climatic factors. The beta diversity decomposition analyses indicated that SBE community dissimilarities between sites were nearly equally driven by similarity, replacement diversity, and richness difference. The co-occurrence network analysis revealed that the keystone taxa were mostly observed in rare species, which may be essential for preserving the ecosystem's functions. Conditionally abundant taxa (CAT) showcased the highest closeness centrality, while exhibiting the lowest degree centrality and betweenness centrality as opposed to rare taxa. In addition, stochastic processes also played an important role in structuring SBE communities, with ecological drift being the dominant factor for both abundant and rare taxa. This study would deepen our understanding of the ecological dynamics and microbial interactions within plant endophytic microbiomes.
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Affiliation(s)
- Xin Qian
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Xinghao Tang
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Fujian Academy of Forestry Sciences, Fuzhou, 350012, China
| | - Weiwei Tian
- Sichuan Academy of Chinese Medical Sciences, Chengdu, 610041, China
| | - Xiangxi Xiao
- Fujian Academy of Forestry Sciences, Fuzhou, 350012, China
| | - Yonglong Wang
- Faculty of Biological Science and Technology, Baotou Teacher's College, Baotou, 014030, China
| | - Qixin Lv
- Nanjing Agricultural University, Nanjing, 210095, China
| | - Hanzhou Li
- Wuhan Benagen Technology Company, Wuhan, 430000, China
| | - Song Feng
- College of Civil Engineering, Fuzhou University, Fuzhou, 350108, China.
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117
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Sentenac H, Loyau A, Zoccarato L, Jassey VEJ, Grossart HP, Schmeller DS. Biofilm community composition is changing in remote mountain lakes with a relative increase in potentially toxigenic algae. Water Res 2023; 245:120547. [PMID: 37708771 DOI: 10.1016/j.watres.2023.120547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/16/2023]
Abstract
Mountain lakes provide clear drinking water to humankind but are strongly impacted by global change. Benthic biofilms are crucial for maintaining water quality in these oligotrophic lakes, yet little is known about the effects of global change on mountain biofilm communities. By combining analyses of metabarcoding data on 16S and 18S rRNA genes with climatic and environmental data, we investigated global change effects on the composition of biofilm prokaryotic and micro-eukaryotic assemblages in a five-year monitoring program of 26 Pyrenean lakes (2016-2020). Using time-decay relationships and within-lake dissimilarity modelling, we show that the composition of both prokaryotic and micro-eukaryotic biofilm communities significantly shifted and their biodiversity declined from 2016 to 2020. In particular, analyses of temporal trends with linear mixed models indicated an increase in the richness and relative abundance of cyanobacteria, including potentially toxigenic cyanobacteria, and a concomitant decrease in diatom richness and relative abundance. While these compositional shifts may be due to several drivers of global change acting simultaneously on mountain lake biota, water pH and hardness were, from our data, the main environmental variables associated with changes for both prokaryotic and micro-eukaryotic assemblages. Water pH and hardness increased in our lakes over the study period, and are known to increase in Pyrenean lakes due to the intensification of rock weathering as a result of climate change. Given predicted climate trends and if water pH and hardness do cause some changes in benthic biofilms, those changes might be further exacerbated in the future. Such biofilm compositional shifts may induce cascading effects in mountain food webs, threatening the resilience of the entire lake ecosystem. The rise in potentially toxigenic cyanobacteria also increases intoxication risks for humans, pets, wild animals, and livestock that use mountain lakes. Therefore, our study has implications for water quality, ecosystem health, public health, as well as local economies (pastoralism, tourism), and highlights the possible impacts of global change on mountain lakes.
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Affiliation(s)
- Hugo Sentenac
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France.
| | - Adeline Loyau
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
| | - Luca Zoccarato
- Department of Plankton and Microbial Ecology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, Stechlin 16775, Germany; Institute of Computational Biology, University of Natural Resources and Life Sciences (BOKU), Muthgasse 18, Vienna 1190, Austria; Core Facility Bioinformatics, University of Natural Resources and Life Sciences (BOKU), Muthgasse 18, Vienna 1190, Austria
| | - Vincent E J Jassey
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
| | - Hans-Peter Grossart
- Department of Plankton and Microbial Ecology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, Stechlin 16775, Germany; Institute of Biochemistry and Biology, Potsdam University, Maulbeerallee 2, Potsdam 14469 Germany
| | - Dirk S Schmeller
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
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Lin L, Qin J, Zhang Y, Yin J, Guo G, Khan MA, Liu Y, Liu Q, Wang Q, Chang K, Mašek O, Wang J, Hu S, Ma W, Li X, Gouda SG, Huang Q. Assessing the suitability of municipal sewage sludge and coconut bran as breeding medium for Oryza sativa L. seedlings and developing a standardized substrate. J Environ Manage 2023; 344:118644. [PMID: 37478717 DOI: 10.1016/j.jenvman.2023.118644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/07/2023] [Accepted: 07/15/2023] [Indexed: 07/23/2023]
Abstract
The utilization of organic solid waste (OSW) for preparing standardized seedling substrates is a main challenge due to its temporal and spatial variability. This study aims to form models based on data from the literature and validate them through experiments to explore a standardized seedling substrate. The typical OSW in Hainan Province, including municipal sewage sludge (MSS), coconut bran (CB), seaweed mud (SM), and municipal sewage sludge biochar (MSSB), was used as raw material. A series of six mixing ratios was tested, namely: T1 (0% MSS: 90% CB), T2 (10% MSS: 80% CB), T3 (30% MSS: 60% CB), T4 (50% MSS: 40% CB), T5 (70% MSS: 20% CB), and T6 (90% MSS: 0% CB). SM and MSSB were added as amendment materials at 5% (w/w) for each treatment. The physicochemical properties of substrates, agronomic traits of rice seedlings and microbial diversity were analyzed. The results showed that the four kinds of OSW played an active role in providing rich sources of nutrients. The dry weight of the above-ground part was 2.98 times greater in T3 than that of the commercial substrate. Furthermore, the microbial analysis showed a higher abundance of Actinobacteria in T3, representing the stability of the composted products. Finally, the successful fitting of the results with the linear regression models could establish relationship equations between the physicochemical properties of the substrate and the growth characteristics of seedlings. The relevant parameters suitable for the growth of rice seedlings were as follows: pH (6.46-7.01), EC (less than 2.12 mS cm-1), DD (0.13-0.16 g cm-3), and TPS (65.68-82.73%). This study proposed relevant parameters and models for standardization of seedling substrate, which would contribute to ensuring the quality of seedlings and OSW resource utilization.
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Affiliation(s)
- Linyi Lin
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Jiemin Qin
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China; School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China
| | - Yu Zhang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Jiaxin Yin
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Genmao Guo
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Muhammad Amjad Khan
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Yin Liu
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Quan Liu
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Qingqing Wang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Kenlin Chang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Ondřej Mašek
- UK Biochar Research Centre School of Geosciences, University of Edinburgh, Edinburgh, UK
| | - Junfeng Wang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Shan Hu
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Wenchao Ma
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China
| | - Xiaohui Li
- Hainan Inspection and Detection Center for Modern Agriculture, Haikou, 570100, China
| | - Shaban G Gouda
- Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Benha University, Benha, 13736, Egypt
| | - Qing Huang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province/Center for Eco-Environmental Restoration Engineering of Hainan Province/School of Ecology & Environment/State Key Laboratory of Marine Resource Utilization in South China Sea/ the Academician He Hong's Team Innovation Platform for Academicians of Hainan Province/ Key Laboratory for Environmental Toxicology of Haikou, Haikou, Hainan University, Hainan, 570228, China.
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Pu S, Wang M, Wang J, Zhang Q, Ma X, Wang R, Yu S, Wang L, Pan Y. Metagenomic analysis reveals a dynamic microbiome with diversified adaptive functions that respond to ovulation regulation in the mouse endometrium. BMC Genomics 2023; 24:615. [PMID: 37833670 PMCID: PMC10571486 DOI: 10.1186/s12864-023-09712-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Understanding the microflora inhabiting the reproductive tract is important for a better understanding of female physiology and reproductive health. The endometrial fluid from mice in three reproductive stages (A: Unproductive mice; B: Postovulatory mice; C: Postpartum mice) was extracted for microbial DNA extraction and sequencing. Phenotypic and functional analyses of endometrial microbial enrichment was undertaken using LefSe. The results showed 95 genera and 134 species of microorganisms in the uteri of mice. There were differentially distributed genera, among which Lactobacillus, Enterococcus, and Streptococcus were more abundant in the endometrial fluid of mice in the unproductive group. That of mice in the postovulatory group was colonized with Salmonella enterica and Campylobacter and was mainly enriched in metabolic pathways and steroid biosynthesis. The presence of Chlamydia, Enterococcus, Pseudomonadales, Acinetobacter, and Clostridium in the endometrial fluid of postpartum mice, in addition to the enrichment of the endocrine system and the Apelin and FoxO signaling pathways, resulted in a higher number of pathogenic pathways than in the other two groups. The results showed that the microbial diversity characteristics in the endometrium of mice in different reproductive states differed and that they could be involved in the regulation of animal reproduction through metabolic pathways and steroid biosynthesis, suggesting that reproductive diseases induced by microbial diversity alterations in the regulation of animal reproduction cannot be ignored.
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Affiliation(s)
- Sisi Pu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Meng Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Jinglei Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Qian Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Xin Ma
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Rui Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Sijiu Yu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Libin Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China
| | - Yangyang Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China.
- Technology and Research Center of Gansu Province for Embryonic Engineering of Bovine and Sheep & Goat, Lanzhou, Gansu, China.
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120
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Yang Y, Li Q, Shen Y, Wei R, Lan Y, Wang Q, Lei N, Xie Y. Combined toxic effects of perfluorooctanoic acid and microcystin-LR on submerged macrophytes and biofilms. J Hazard Mater 2023; 459:132193. [PMID: 37549579 DOI: 10.1016/j.jhazmat.2023.132193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/12/2023] [Accepted: 07/29/2023] [Indexed: 08/09/2023]
Abstract
Perfluorooctanoic acid (PFOA) and microcystin-LR (MCLR) are pervasive pollutants in surface waters that induce significant toxic effects on aquatic organisms. However, the combined environmental risk of PFOA and MCLR remains unclear. To assess the toxic effects of PFOA and MCLR on submerged macrophytes and biofilms, Vallisneria natans was exposed to different concentrations of PFOA and MCLR (0.01, 0.1, 1.0 and 10.0 μg L-1). Vallisneria natans was sensitive to high concentrations of MCLR (10 μg L-1): plants exposed to 10 μg L-1 of MCLR measured a biomass of 3.46 g, which was significantly lower than the 8.71 g of the control group. Additionally, antagonistic interactive effects were observed in plants exposed to combined PFOA and MCLR. Exposure to these pollutants adversely affected photosynthesis of the plants and triggered peroxidation that promoted peroxidase, superoxide dismutase and catalase activities, and increased malondialdehyde and glutathione concentrations. The total chlorophyll content was lower in the highest concentration of the combined treatment group (0.443 mg g-1) than in the control group (0.534 mg g-1). Peroxidase activity increased from 662.63 U mg-1 Pr to 1193.45 U mg-1 Pr with increasing PFOA concentrations. Metabolomics indicated that the stress tolerance of Vallisneria natans was improved via altered fatty acid metabolism, hormone metabolism and carbon metabolism. Furthermore, PFOA and MCLR influenced the abundance and structure of the microbial community in the biofilms of Vallisneria natans. The increased contents of autoinducer peptide and N-acylated homoserine lactone signaling molecules indicated that these pollutants altered the formation and function of the biofilm. These results expand our understanding of the combined effects of PFOA and MCLR in aquatic ecosystems.
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Affiliation(s)
- Yixia Yang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China
| | - Qi Li
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China; Tianfu Yongxing Laboratory, Chengdu 610213, PR China.
| | - Yifan Shen
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China
| | - Renjie Wei
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China
| | - Yiyang Lan
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China
| | | | - Ningfei Lei
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China
| | - Yanhua Xie
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, PR China
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121
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Sui J, He X, Yi G, Zhou L, Liu S, Chen Q, Xiao X, Wu J. Diversity and structure of the root-associated bacterial microbiomes of four mangrove tree species, revealed by high-throughput sequencing. PeerJ 2023; 11:e16156. [PMID: 37810771 PMCID: PMC10559887 DOI: 10.7717/peerj.16156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
Background Root-associated microbes of the mangrove trees play important roles in protecting and maintaining mangrove ecosystems. At present, most of our understanding of mangrove root-related microbial diversity is obtained from specific mangrove species in selected geographic regions. Relatively little is known about the composition of the bacterial microbiota existing in disparate mangrove species microenvironments, particularly the relationship among different mangrove species in tropical environments. Methods We collected the root, rhizosphere soil, and non-rhizosphere soil of four mangrove trees (Acanthus ilicifolius, Bruguiera gymnorrhiza, Clerodendrum inerme, and Lumnitzera racemosa) and detected the 16S rRNA gene by a conventional PCR. We performed high throughput sequencing using Illumina Novaseq 6000 platform (2 × 250 paired ends) to investigate the bacterial communities related with the different mangrove species. Results We analyzed the bacterial diversity and composition related to the diverse ecological niches of mangrove species. Our data confirmed distinct distribution patterns of bacterial communities in the three rhizocompartments of the four mangrove species. Microbiome composition varied with compartments and host mangrove species. The bacterial communities between the endosphere and the other two compartments were distinctly diverse independent of mangrove species. The large degree of overlap in critical community members of the same rhizocompartment across distinct mangrove species was found at the phylum level. Furthermore, this is the first report of Acidothermus found in mangrove environments. In conclusion, understanding the complicated host-microbe associations in different mangrove species could lay the foundation for the exploitation of the microbial resource and the production of secondary metabolites.
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Affiliation(s)
- Jinlei Sui
- Public Research Center, Hainan Medical College, Haikou, China
| | - Xiaowen He
- Public Research Center, Hainan Medical College, Haikou, China
| | - Guohui Yi
- Public Research Center, Hainan Medical College, Haikou, China
| | - Limin Zhou
- Public Research Center, Hainan Medical College, Haikou, China
| | - Shunqing Liu
- Public Research Center, Hainan Medical College, Haikou, China
| | - Qianqian Chen
- Public Research Center, Hainan Medical College, Haikou, China
| | - Xiaohu Xiao
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Jinyan Wu
- Public Research Center, Hainan Medical College, Haikou, China
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Wang B, Qi M, Ma Y, Zhang B, Hu Y. Microbiome Diversity and Cellulose Decomposition Processes by Microorganisms on the Ancient Wooden Seawall of Qiantang River of Hangzhou, China. Microb Ecol 2023; 86:2109-2119. [PMID: 37099155 DOI: 10.1007/s00248-023-02221-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Archaeological wood, also known as wooden cultural relics, refers to ancient wood that has been worked by humans. Further insights into the decomposition mechanism of archaeological wood are needed for its preventive conservation. In this study, we assessed the microbiome diversity and cellulose decomposition processes on a 200-year-old ancient wooden seawall - the Qiantang River of Hangzhou, China. We used high-throughput sequencing (HTS) to deduce the metagenomic functions, particularly the cellulose-decomposing pathway of the microbial communities, through bioinformatical approaches. The predominant cellulose-decomposing microorganisms were then verified with traditional isolation, culture, and identification method. The results showed that the excavation of archaeological wood significantly altered the environment, accelerating the deterioration process of the archaeological wood through the carbohydrate metabolism and the xenobiotic biodegradation and metabolism pathways, under the comprehensive metabolism of complex ecosystem formed by bacteria, archaea, fungi, microfauna, plants, and algae. Bacteroidetes, Proteobacteria, Firmicutes, and Actinobacteria were found to be the predominant source of bacterial cellulose-decomposing enzymes. Accordingly, we suggest relocating the wooden seawall to an indoor environment with controllable conditions to better preserve it. In addition, these results provide further evidence for our viewpoints that HTS techniques, combined with rational bioinformatical data interpretation approaches, can serve as powerful tools for the preventive protection of cultural heritage.
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Affiliation(s)
- Bowen Wang
- Department of Archaeology, Cultural Heritage and Museology, Zhejiang University, Hangzhou, 310028, China
| | - Miaoyi Qi
- Department of Archaeology, Cultural Heritage and Museology, Zhejiang University, Hangzhou, 310028, China
| | - Yonghua Ma
- The Traditional Architecture Design and Research Institute of Zhejiang Province, Hangzhou, 310030, China
| | - Bingjian Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310028, China.
| | - Yulan Hu
- Department of Archaeology, Cultural Heritage and Museology, Zhejiang University, Hangzhou, 310028, China.
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Zheng S, Wang YW, Lai JL, Zhang Y, Luo XG. Effects of long-term herbaceous plant restoration on microbial communities and metabolic profiles in coal gangue-contaminated soil. Environ Res 2023; 234:116491. [PMID: 37394168 DOI: 10.1016/j.envres.2023.116491] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/10/2023] [Accepted: 06/21/2023] [Indexed: 07/04/2023]
Abstract
The soil microbial diversity in the gangue accumulation area is severely stressed by a variety of heavy metals, while the influence of long-term recovery of herbaceous plants on the ecological structure of gangue-contaminated soil is to be explored. Therefore, we analysed the differences in physicochemical properties, elemental changes, microbial community structure, metabolites and expression of related pathways in soils in the 10- and 20-year herbaceous remediation areas of coal gangue. Our results showed that phosphatase, soil urease, and sucrase activities of gangue soils significantly increased in the shallow layer after herbaceous remediation. However, in zone T1 (10-year remediation zone), the contents of harmful elements, such as Thorium (Th; 1.08-fold), Arsenic (As; 0.78-fold), lead (Pb; 0.99-fold), and uranium (U; 0.77-fold), increased significantly, whereas the soil microbial abundance and diversity also showed a significant decreasing trend. Conversely, in zone T2 (20-year restoration zone), the soil pH significantly increased by 1.03- to 1.06-fold and soil acidity significantly improved. Moreover, the abundance and diversity of soil microorganisms increased significantly, the expression of carbohydrates in soil was significantly downregulated, and sucrose content was significantly negatively correlated with the abundance of microorganisms, such as Streptomyces. A significant decrease in heavy metals was observed in the soil, such as U (1.01- to 1.09-fold) and Pb (1.13- to 1.25-fold). Additionally, the thiamin synthesis pathway was inhibited in the soil of the T1 zone; the expression level of sulfur (S)-containing histidine derivatives (Ergothioneine) was significantly up-regulated by 0.56-fold in the shallow soil of the T2 zone; and the S content in the soil significantly reduced. Aromatic compounds were significantly up-regulated in the soil after 20 years of herbaceous plant remediation in coal gangue soil, and microorganisms (Sphingomonas) with significant positive correlations with benzene ring-containing metabolites, such as Sulfaphenazole, were identified.
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Affiliation(s)
- Sheng Zheng
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yi-Wang Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Jin-Long Lai
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
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Cao Y, Song Z, Dong C, Yu Q, Han L. Chitosan coating with grape peel extract: A promising coating to enhance the freeze-thaw stability of beef. Meat Sci 2023; 204:109262. [PMID: 37356417 DOI: 10.1016/j.meatsci.2023.109262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 06/27/2023]
Abstract
This study investigated the effect of chitosan coating with grape peel extracts (CH + GPE) on the physiochemical properties, protein and lipid oxidation, microstructure, and bacterial community diversity of beef during freeze-thaw (F-T) cycles. The results indicated that the CH + GPE groups had lower pH values, total aerobic count, total volatile base nitrogen, and thiobarbituric acid reactive substance values and better protection against color, water holding capacity, and sensory quality after five F-T cycles. The CH + GPE coating effectively inhibited beef microstructure destruction during the F-T cycles. High-throughput sequencing analysis revealed that the CH + GPE coating contributed to a decline in the bacterial diversity of beef and inhibited the growth of pathogenic bacteria. Interestingly, the CH + GPE coating affected the correlation between quality parameters and bacteria in beef. Consequently, the CH + GPE coating can be used as a novel packaging for preventing the loss of frozen meat quality due to temperature fluctuations.
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Affiliation(s)
- Yinjuan Cao
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Zhaoyang Song
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Chunjuan Dong
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Qunli Yu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China.
| | - Ling Han
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
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Jia Y, Niu H, Zhao P, Li X, Yan F, Wang C, Qiu Z. Synergistic biocontrol of Bacillus subtilis and Pseudomonas fluorescens against early blight disease in tomato. Appl Microbiol Biotechnol 2023; 107:6071-6083. [PMID: 37540249 DOI: 10.1007/s00253-023-12642-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/04/2023] [Accepted: 06/15/2023] [Indexed: 08/05/2023]
Abstract
Early blight of tomato caused by Alternaria solani results in significant crop losses. In this study, Bacillus subtilis J3 and Pseudomonas fluorescens J8 were co-cultured as a synthetic microbial community (BCA) for synergistic biocontrol of A. solani, and the inhibition mechanism was investigated. BCA presented an inhibition ration against A. solani at 94.91%, which lowered the disease incidence by 38.26-42.87%; reduced peroxidase, catalase, superoxide dismutase activity of tomatoes by 73.11-90.22%; and promoted the biomass by 66.91-489.21%. With BCA protection, the relative expression of tomato resistance genes (including gPAL2, SWRKY, PR-10, and CHI) in roots and leaves was 12.83-90.70% lower than without protection. BCA also significantly altered the rhizosphere and phyllosphere microbial community. The abundance of potentially beneficial bacteria, including Bacillus, Pseudomonas, Arthrobacter, Lysobacter, and Rhizobium, elevated by 6.58-192.77%. They were negatively correlated with resistance gene expression, indicating their vital involvement in disease control. These results provided essential information on the synergistic biocontrol mechanism of bacteria against pathogens, which could contribute to developing novel biocontrol strategies. KEY POINTS: • Bacillus and Pseudomonas present a synergistic biocontrol effect against A. solani. • Biocontrol prevents pathogen damage and improves tomato growth and systemic resistance. • Beneficial bacteria thrive in the rhizosphere is the key to microbial regulation.
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Affiliation(s)
- Yinxue Jia
- School of Life Science and Engineering, Southwest Jiaotong University, No. 111 Second Ring Road, Chengdu, 610031, Sichuan, People's Republic of China
| | - Huan Niu
- School of Life Science and Engineering, Southwest Jiaotong University, No. 111 Second Ring Road, Chengdu, 610031, Sichuan, People's Republic of China
| | - Peng Zhao
- School of Life Science and Engineering, Southwest Jiaotong University, No. 111 Second Ring Road, Chengdu, 610031, Sichuan, People's Republic of China
| | - Xing Li
- School of Life Science and Engineering, Southwest Jiaotong University, No. 111 Second Ring Road, Chengdu, 610031, Sichuan, People's Republic of China
| | - Fangfang Yan
- Panzhihua City Company, Sichuan Tobacco Company, China National Tobacco Corporation, Panzhihua, 617000, Sichuan, People's Republic of China
| | - Can Wang
- School of Life Science and Engineering, Southwest Jiaotong University, No. 111 Second Ring Road, Chengdu, 610031, Sichuan, People's Republic of China.
| | - Zhongping Qiu
- School of Life Science and Engineering, Southwest Jiaotong University, No. 111 Second Ring Road, Chengdu, 610031, Sichuan, People's Republic of China.
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Lagos S, Tsetsekos G, Mastrogianopoulos S, Tyligada M, Diamanti L, Vasileiadis S, Sotiraki S, Karpouzas DG. Interactions of anthelmintic veterinary drugs with the soil microbiota: Toxicity or enhanced biodegradation? Environ Pollut 2023; 334:122135. [PMID: 37406753 DOI: 10.1016/j.envpol.2023.122135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/26/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
Anthelmintic (AH) compounds are used to control gastrointestinal nematodes (GINs) in livestock production. They are only partially metabolized in animals ending in animal excreta whose use as manures leads to AH dispersal in agricultural soils. Once in soil, AHs interact with soil microorganisms, with the outcome being either detrimental, or beneficial. We aimed to disentangle the mechanisms of these complex interactions. Two soils previously identified as « fast » or « slow», regarding the degradation of albendazole (ABZ), ivermectin (IVM), and eprinomectin (EPM), were subjected to repeated applications at two dose rates (1, 2 mg kg-1and 10, 20 mg kg-1). We hypothesized that this application scheme will lead to enhanced biodegradation in «fast » soils and accumulation and toxicity in «slow » soils. Repeated application of ABZ resulted in different transformation pathways in the two soils and a clear acceleration of its degradation in the «fast » soil only. In contrast residues of IVM and EPM accumulated in both soils. ABZ was the sole AH that induced a consistent reduction in the abundance of total fungi and crenarchaea. In addition, inhibition of nitrification and reduction in the abundance of ammonia-oxidizing bacteria (AOB) and archaea (AOA) by all AHs was observed, while commamox bacteria were less responsive. Amplicon sequencing analysis showed dose-depended shifts in the diversity of bacteria, fungi, and protists in response to AHs application. ABZ presented the most consistent effect on the abundance and diversity of most microbial groups. Our findings provide first evidence for the unexpected toxicity of AHs on key soil microbial groups that might have to be considered in a regulatory context.
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Affiliation(s)
- Stathis Lagos
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece
| | - Georgios Tsetsekos
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece
| | - Spyridon Mastrogianopoulos
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece
| | - Maria Tyligada
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece
| | - Lamprini Diamanti
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece
| | - Sotirios Vasileiadis
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece
| | - Smaragda Sotiraki
- Laboratory of Parasitology, Hellenic Agricultural Organization-Demeter, Veterinary Research Institute, 57001, Thermi, Greece
| | - Dimitrios G Karpouzas
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Viopolis, 41500, Larissa, Greece.
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127
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Gong X, Ge Z, Ma Z, Li Y, Huang D, Zhang J. Effect of different size microplastic particles on the construction of algal-bacterial biofilms and microbial communities. J Environ Manage 2023; 343:118246. [PMID: 37245312 DOI: 10.1016/j.jenvman.2023.118246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/21/2023] [Accepted: 05/22/2023] [Indexed: 05/30/2023]
Abstract
Algal-bacterial symbiotic system is a biological purification system that combines sewage treatment with resource utilization and has the dual effects of carbon sequestration and pollution reduction. In this study, an immobilized algal-bacterial biofilm system was constructed for the treatment of natural sewage. Effects of exposure to microplastics (MPs) with different particle diameters (0.065 μm, 0.5 μm and 5 μm) were determined in terms of algal biomass recovery efficiency, the composition of extracellular polymeric substances (EPS) and morphologic characteristics. The impacts of MPs on the bacterial diversity and community structure of biofilms were also examined. The metagenomic analysis of key microorganisms and related metabolism pathways involved in system was further investigated. Results showed that following exposure to 5 μm MP, a maximum algal recovery efficiency of 80% was achieved, with a minimum PSII primary light energy conversion efficiency (Fv/Fm ratio) of 0.513. Furthermore, 5 μm MP caused the highest level of damage to the algal-bacterial biofilm, enhancing the secretion of protein-rich EPS. The biofilm morphology became rough and loose following exposure to 0.5 μm and 5 μm MP. Community diversity and richness were significantly high in biofilms exposed to 5 μm MP. Proteobacteria (15.3-24.1%), Firmicutes (5.0-7.8%) and Actinobacteria (4.2-4.9%) were dominant in all groups, with exposure to 5 μm MP resulting in the highest relative abundance for these species. The addition of MPs promoted the related metabolic functions while inhibited the degradation of harmful substances by algal-bacterial biofilms. The findings have environmental significance for the practical application of algal-bacterial biofilms for sewage treatment, providing novel insights into the potential effects of MPs on immobilized algal-bacterial biofilm systems.
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Affiliation(s)
- Xinye Gong
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China
| | - Zuhan Ge
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China
| | - Zihang Ma
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China
| | - Yaguang Li
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China; Shanghai Shifang Ecology and Landscape Co., Ltd, Shanghai 200233, PR China
| | - Deying Huang
- Shanghai Shifang Ecology and Landscape Co., Ltd, Shanghai 200233, PR China; Department of Chemistry, Fudan University, Shanghai 200433, PR China.
| | - Jibiao Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China.
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128
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Cai Y, Li H, Qu G, Hu Y, Zou H, Zhao S, Cheng M, Chu X, Ren N. Responses of applied voltages on the archaea microbial distribution in sludge digestion. Chemosphere 2023; 339:139639. [PMID: 37495052 DOI: 10.1016/j.chemosphere.2023.139639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/18/2023] [Accepted: 07/22/2023] [Indexed: 07/28/2023]
Abstract
As the development of urban population led to the increase of domestic water consumption, consequently the generation of surplus sludge (SS) produced increasingly during sewage treatment processes. In order to enhance the SS resource utilization efficiency, an electricity-assisted anaerobic digestion (EAAD) system was employed to examine the alterations in the digestion broth and the characteristics of gas production. Additionally, the response of applied voltages on the distribution of archaeal community near various electrodes within the sludge was explored. The results revealed that the application of high voltages exceeding 3.0 V hindered the CH4 production but stimulated the CO2 generation. Subsequently, both CH4 and CO2 production were impeded by the applied voltages. Furthermore, the increased voltages significantly decreased the abundance of Methanomicrobia, Methanosaeta, and Methanosarcina, which were crucial determinants of CH4 content in biogas. Notably, the excessively high voltages intensities caused the AD process to halt and even inactivate the microbial flora. Interestingly, the distribution characteristics of archaeal community were influenced not only by the voltages intensity but also exhibited variations between the anode and cathode regions. Moreover, as the applied voltage intensified, the discrepancy of responses between the cathode and anode regions became more pronounced, offering novel theoretical and technical foundations for the advancement of electricity-assisted with AD technology.
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Affiliation(s)
- Yingying Cai
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming, 650500, Yunnan, China
| | - Heng Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; Yunnan Yuntianhua Environmental Protection Technology Co., LTD, Kunming, 650228, Yunnan, China
| | - Guangfei Qu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming, 650500, Yunnan, China.
| | - Yinghui Hu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming, 650500, Yunnan, China
| | - Hongmei Zou
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming, 650500, Yunnan, China
| | - Shiqiang Zhao
- Yunnan Shunfeng Erhai Environmental Protection Technology Co., LTD, Dali, 671000, Yunnan, China
| | - Minhua Cheng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming, 650500, Yunnan, China
| | - Xiaomei Chu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming, 650500, Yunnan, China
| | - Nanqi Ren
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; School of Environment, Harbin Institute of Technology, Harbin, 150000, Heilongjiang, China
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129
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Luo C, He T, Wang G, Tian M, Dai L, Pu T, Tian G. Up-flow anaerobic sludge blanket treatment of swine wastewater: Effect of heterologous and homologous inocula on anaerobic digestion performance and the microbial community. Bioresour Technol 2023; 386:129463. [PMID: 37429557 DOI: 10.1016/j.biortech.2023.129463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/12/2023]
Abstract
The effects of heterogenous (anaerobic sludge from treating distillery sewage, ASDS) and homologous (anaerobic sludge from treating swine wastewater, ASSW) inocula on anaerobic digestion and the microbial community in an up-flow anaerobic sludge blanket treating swine wastewater were compared. The highest chemical oxygen demand removal efficiencies with ASDS (84.8%) and ASSW (83.1%) were obtained with an organic loading rate of 15 kg COD/m3/d. For ASSW compared with ASDS, methane production efficiency was 15.3% higher and excess sludge production was 73.0% lower. The abundance of the cellulose hydrolyzing bacterium Clostridium sensu stricto_1 with ASDS (36.1%) was 1.5 times that with ASSW, while that of Methanosarcina with ASSW (22.9%) was > 100 times that with ASDS. ASDS reduced the content of pathogenic bacteria by 88.0%, while ASSW maintained a low level of pathogenic bacteria. ASSW greatly improved the methane production efficiency of wastewater and is more suitable for treating swine wastewater.
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Affiliation(s)
- Can Luo
- Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), China College of Agriculture, Institute of New Rural Development, Guizhou University, Guiyang 550025, China
| | - Tenbing He
- Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), China College of Agriculture, Institute of New Rural Development, Guizhou University, Guiyang 550025, China
| | - Guoying Wang
- Agricultural Ecology and Resource Protection Station of Guizhou Province, Guiyang 550001, China
| | - Maoyuan Tian
- Agricultural Ecology and Resource Protection Station of Guizhou Province, Guiyang 550001, China
| | - Liangyu Dai
- Agricultural Ecology and Resource Protection Station of Guizhou Province, Guiyang 550001, China
| | - Tianyun Pu
- Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), China College of Agriculture, Institute of New Rural Development, Guizhou University, Guiyang 550025, China; Soil Fertilizer Work Station of Guizhou Province, Guiyang 550001, China
| | - Guangliang Tian
- Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), China College of Agriculture, Institute of New Rural Development, Guizhou University, Guiyang 550025, China.
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130
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Sushmitha TJ, Rajeev M, Murthy PS, Rao TS, Pandian SK. Planktonic and early-stage biofilm microbiota respond contrastingly to thermal discharge-created seawater warming. Ecotoxicol Environ Saf 2023; 264:115433. [PMID: 37696079 DOI: 10.1016/j.ecoenv.2023.115433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/21/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023]
Abstract
Thermal-discharges from power plants highly disturb the biological communities of the receiving water body and understanding their influence is critical, given the relevance to global warming. We employed 16 S rRNA gene sequencing to examine the response of two dominant marine bacterial lifestyles (planktonic and biofilm) against elevated seawater temperature (+5 ℃). Obtained results demonstrated that warming prompted high heterogeneity in diversity and composition of planktonic and biofilm microbiota, albeit both communities responded contrastingly. Alpha diversity revealed that temperature exhibited positive effect on biofilm microbiota and negative effect on planktonic microbiota. The community composition of planktonic microbiota shifted significantly in warming area, with decreased abundances of Bacteroidetes, Cyanobacteria, and Actinobacteria. Contrastingly, these bacterial groups exhibited opposite trend in biofilm microbiota. Co-occurrence networks of biofilm microbiota displayed higher node diversity and co-presence in warming area. The study concludes that with increasing ocean warming, marine biofilms and biofouling management strategies will be more challenging.
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Affiliation(s)
- T J Sushmitha
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - Meora Rajeev
- Department of Biotechnology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - P Sriyutha Murthy
- Water & Steam Chemistry Division, Bhabha Atomic Research Centre Facilities, Kalpakkam, Tamil Nadu, India
| | - Toleti Subba Rao
- School of Arts & Sciences, Sai University, OMR, Paiyanur, 603105 Tamil Nadu, India
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131
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Wang Y, Zheng G, Zhao Y, Bo H, Li C, Dong J, Wang Y, Yan S, Zhang F, Liu J. Different bacterial and fungal community patterns in restored habitats in coal-mining subsidence areas. Environ Sci Pollut Res Int 2023; 30:104304-104318. [PMID: 37700132 DOI: 10.1007/s11356-023-29744-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 09/03/2023] [Indexed: 09/14/2023]
Abstract
Soil microbiota, which plays a fundamental role in ecosystem functioning, is sensitive to environmental changes. Studying soil microbial ecological patterns can help to understand the consequences of environmental disturbances on soil microbiota and hence ecosystem services. The different habitats with critical environmental gradients generated through the restoration of coal-mining subsidence areas provide an ideal area to explore the response of soil microbiota to environmental changes. Here, based on high-throughput sequencing, we revealed the patterns of soil bacterial and fungal communities in habitats with different land-use types (wetland, farmland, and grassland) and with different restored times which were generated during the ecological restoration of a typical coal-mining subsidence area in Jining City, China. The α-diversity of bacterial was higher in wetland than in farmland and grassland, while that of fungi had no discrepancy among the three habitats. The β-diversity of bacterial community in the grassland was lower than in the farmland, and fungal community was significant different in all three habitats, showing wetland, grassland, and farmland from high to low. The β-diversity of the bacterial community decreased with restoration time while that of the fungal community had no significant change in the longer-restoration-time area. Furthermore, soil electrical conductivity was the most important driver for both bacterial and fungal communities. Based on the taxonomic difference among different habitats, we identified a group of biomarkers for each habitat. The study contributes to understand the microbial patterns during the ecological restoration of coal-mining subsidence areas, which has implications for the efficient ecological restoration of subsidence areas.
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Affiliation(s)
- Yijing Wang
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Guodong Zheng
- Technology Innovation Center of Restoration and Reclamation in Mining induced Subsidence Land, Ministry of Natural Resources, Shandong Provincial Lunan Geology and Exploration Institute (Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geological Brigade), Jining, 272000, China.
| | - Yongkang Zhao
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Huaizhi Bo
- Technology Innovation Center of Restoration and Reclamation in Mining induced Subsidence Land, Ministry of Natural Resources, Shandong Provincial Lunan Geology and Exploration Institute (Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geological Brigade), Jining, 272000, China
| | - Changchao Li
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Junyu Dong
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Yan Wang
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Shuwan Yan
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Fanglong Zhang
- Technology Innovation Center of Restoration and Reclamation in Mining induced Subsidence Land, Ministry of Natural Resources, Shandong Provincial Lunan Geology and Exploration Institute (Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geological Brigade), Jining, 272000, China
| | - Jian Liu
- Environment Research Institute, Shandong University, Qingdao, 266237, China
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132
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Li Y, Lu D, Xia Y, Xu X, Huang H, Mei X, Yang M, Li J, Zhu S, Liu Y, Zhang Z. Effects of allyl isothiocyanate fumigation on medicinal plant root knot disease control, plant survival, and the soil bacterial community. BMC Microbiol 2023; 23:278. [PMID: 37775764 PMCID: PMC10542678 DOI: 10.1186/s12866-023-02992-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 08/22/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Allyl isothiocyanate (AITC) is a natural product with high volatility that is used as a biofumigant to alleviate soil-borne plant diseases, and problems such as root knot nematodes (RKNs) that necessitate continuous cropping. However, little research has assessed the effects of AITC fumigation on medicinal plants. RESULTS AITC significantly reduced the population of RKNs in soil (p < 0.0001) and showed an excellent RKN disease control effect within 6 months after sowing Panax notoginseng (p < 0.0001). The seedling survival rate of 2-year-old P. notoginseng was approximately 1.7-fold higher after soil treatment with AITC (p = 0.1008). 16S rRNA sequencing indicated that the AITC treatment affected bacterial richness rather than diversity in consecutively cultivated (CC) soil. Furthermore, biomarkers with statistical differences between AITC-treated and untreated CC soil showed that Pirellulales (order), Pirellulaceae (family), Pseudomonadaceae (family), and Pseudomonas (genus) played important roles in the AITC-treated group. In addition, the microbiome functional phenotypes predicted using the BugBase tool suggested that AITC treatment is more conducive to improving CC soil through changes in the bacterial community structure. Crucially, our research also suggested that AITC soil treatment significantly increases soil organic matter (p = 0.0055), total nitrogen (p = 0.0054), and available potassium (p = 0.0373), which promotes the survival of a succeeding medicinal plant (Polygonatum kingianum). CONCLUSION AITC is an ecologically friendly soil treatment that affects the top 10 bacterial richness but not diversity. It could also provide a basis for a useful agricultural soil management measure to alleviate soil sickness.
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Affiliation(s)
- Yingbin Li
- Department of Pesticide Science, College of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Daqing Lu
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Yan Xia
- Department of Pesticide Science, College of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Xinjing Xu
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Huichuan Huang
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Xinyue Mei
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Min Yang
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Jianqiang Li
- Department of Plant Pathology, Beijing Key Laboratory of Seed Disease Testing and Control, China Agricultural University, Beijing, 100193, China
| | - Shusheng Zhu
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Yixiang Liu
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.
| | - Zhiping Zhang
- Department of Horticulture, College of Landscape and Horticulture, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.
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133
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Mensah L, Petrie B, Scrimshaw M, Cartmell E, Fletton M, Campo P. Influence of solids and hydraulic retention times on microbial diversity and removal of estrogens and nonylphenols in a pilot-scale activated sludge plant. Heliyon 2023; 9:e19461. [PMID: 37809578 PMCID: PMC10558614 DOI: 10.1016/j.heliyon.2023.e19461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 10/10/2023] Open
Abstract
The removal of EDCs in activated sludge processes can be enhanced by increasing solid and hydraulic retention times (SRT and HRT); it has been suggested that the improvement in removal is due to changes in microbial community structure (MCS). Though the influence of SRT and HRT on chemical removal and MCS has been studied in isolation, their synergistic impact on MCS and the removal of estrogens and nonylphenols in activated sludge remains unknown. Hence, we investigated how both parameters influence MCS in activated sludge processes and their ulterior effect on EDC removal. In our study, an activated sludge pilot-plant was fed with domestic sewage fortified with 100 and 1000 ng/L nonylphenols or 2 and 15 ng/L estrogens and operated at 3, 10 and 27 d SRT (constant HRT) and at 8, 16 and 24 h HRT (constant SRT). The MCS was assessed by phospholipid fatty acids (PLFA) analysis, and the archaeal and bacterial diversities were determined by 16S rRNA analysis. From the PLFA, the microbial abundance ranked as follows: Gram-negative > fungi > Gram-positive > actinomycetes whilst 16S rRNA analysis revealed Proteobacteria > Bacteroidetes > Others. Both PLFA and 16S rRNA analysis detected changes in MCS as SRT and HRT were increased. An SRT increment from 3 to 10 d resulted in higher estrone (E1) removal from 19 to 93% and nonylphenol-4-exthoxylate (NP4EO) from 44 to 73%. These findings demonstrate that EDC-removal in activated sludge plants can be optimised where longer SRT (>10 d) and HRT (>8 h) are suitable. We have also demonstrated that PLFA can be used for routine monitoring of changes in MCS in activated sludge plants.
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Affiliation(s)
- Lawson Mensah
- Environmental Science Department, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Bruce Petrie
- Robert Gordon University, Garthdee Rd, Garthdee, Aberdeen, AB10 7AQ, UK
| | - Mark Scrimshaw
- Department of Life Sciences, Brunel University London, Uxbridge, UB8 3PH, UK
| | - Elise Cartmell
- Scottish Water, Castle House, 6 Castle Drive, Carnegie Campus, Dunfermline, KY11 8GG, UK
| | | | - Pablo Campo
- Cranfield Water Science Institute, School of Water, Energy & Environment, Cranfield University, MK43 0AL, UK
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134
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Wu L, Long H, Huang S, Niu X, Li S, Yu X, You L, Ran X, Wang J. Bacterial diversity in water from Xifeng Hot Spring in China. Braz J Microbiol 2023; 54:1943-1954. [PMID: 37594656 PMCID: PMC10484846 DOI: 10.1007/s42770-023-01070-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/15/2023] [Indexed: 08/19/2023] Open
Abstract
The Xifeng Hot Spring is one of the eight largest hot springs in China, which is rich in radon gas and sulphur in karst scenery. Little is known about the microbiota structure in the spring. The water was collected from three sites containing the outlet of spring water discharge site (OWD), spring pool for tourist (SPT) and sewage effluent pool (SEP) in the Xifeng Hot Spring and further analyzed by culture-independent technique and culture-dependent method. A total of 57 phyla were identified from the water samples. The dominate phyla at OWD was Bacteroidetes (46.93%), while it was Proteobacteria in both sites of SEP and SPT with relative richness of 61.9% and 94.9%, respectively. Two bacteria, Deinococcus and Hymenobacter, that confirmed to be radiation-resistant, seven sulphur bacteria and three thermophilic bacteria were detected from Xifeng Hot Spring. Furthermore, it was found that genus Flavobacterium was susceptible to environmental change with abundance of 11 ~ 2825 times higher in OWD than the other two groups. Compared bacteria from the OWD group with that from 14 hot springs in six countries, total 94 unique genera bacteria were found out from the Xifeng Hot Spring including four thiometabolism-related bacteria (Propionispira, Desulforegula, Desulfobacter and Desulfococcus) and the thermophilic bacterium (Symbiobacterium). Using microbial culturing and isolation technology, sixteen strains were isolated from the water samples of three sites. The diversity of microbiota was abundant and variable along with the niche changed in conditions and surroundings. It indicated that numbers of valuable bacteria resources could be explored from the special surroundings of Xifeng Hot Spring.
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Affiliation(s)
- Lijuan Wu
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Hong Long
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Shihui Huang
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Xi Niu
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Sheng Li
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Xing Yu
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Longjiang You
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China
| | - Xueqin Ran
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China.
| | - Jiafu Wang
- College of Animal Science/Institute of Agro-Bioengineering, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region and Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China.
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Oliveira-Santos N, Pimentel Rodrigues Dos Santos LB, Fernandes JV, Cruz-Magalhães V, Loguercio LL. More than just an insect killer: The non-insecticidal activities of Bacillus thuringiensis with biotechnological potential. Toxicon 2023; 233:107261. [PMID: 37611671 DOI: 10.1016/j.toxicon.2023.107261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 08/25/2023]
Abstract
Bacillus thuringiensis (Bt) is known for the biological control of important insect pests, but scientific advances have revealed several interesting characteristics, in addition to this classical function as a bioinsecticide. To investigate the current knowledge about these non-insecticidal activities, a systematic research on primary data in the scientific literature was conducted on alternative functions of Bt with biotechnological potential. Out of a total of 140 articles selected, 15 non-insecticidal Bt activities were found. Publications related to this topic are available since 1971, and different metadata were reported, such as biomolecules and genes involved in Bt performances in non-insecticidal bioactivities. A total of 11 Bt activities with different effect measures (response variables) were identified, with an average of 48 distinct Bt strains evaluated per activity. Approximately 81.2% of all identified experiments/tests deal with the direct effects of Bt on target cells/organisms, with 36.3% of the strains within these studies tested for antibacterial action; of all microbial targets tested, 92.8% are bacteria, which led to 75.2% of the experimental conditions for all direct activities being performed in vitro. Regarding indirect Bt activities, 67.6% of these studies reported tritrophic Bt-plant-pathogen interactions. Bioremediation also appears as a relevant Bt activity being investigated in-depth. Alternative Bt activities offer innovative ways of developing biotechnology for different areas of anthropic interest; hence, we also focus on the possibility of finding multifunctional strains of Bt, as this may be advantageous from a bioeconomic point of view. Our findings are discussed in terms of research trends, aspects, details and depth of the current knowledge on alternative non-insecticidal Bt traits. We also discuss the potential application of this science for useful technological developments, aiming at solving issues related to human health, sustainable agriculture and environmental preservation/restoration.
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Affiliation(s)
- Naiane Oliveira-Santos
- Department of Biological Sciences, State University of Santa Cruz (UESC), Rod, Ilhéus-Itabuna, Km-16, Ilhéus, BA, 45662-900, Brazil.
| | | | - Jacquelline Viana Fernandes
- Department of Biological Sciences, State University of Santa Cruz (UESC), Rod, Ilhéus-Itabuna, Km-16, Ilhéus, BA, 45662-900, Brazil.
| | - Valter Cruz-Magalhães
- Department of Biological Sciences, State University of Santa Cruz (UESC), Rod, Ilhéus-Itabuna, Km-16, Ilhéus, BA, 45662-900, Brazil; Department of Phytophatology (DFP), Federal University of Lavras (UFLA), Lavras, MG, Brazil.
| | - Leandro Lopes Loguercio
- Department of Biological Sciences, State University of Santa Cruz (UESC), Rod, Ilhéus-Itabuna, Km-16, Ilhéus, BA, 45662-900, Brazil.
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136
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Yan W, Wang Y, Li Y, Rong C, Wang D, Wang C, Wang Y, Yuen YL, Wong FF, Chui HK, Li YY, Zhang T. Treatment of fresh leachate by anaerobic membrane bioreactor: On-site investigation, long-term performance and response of microbial community. Bioresour Technol 2023; 383:129243. [PMID: 37257727 DOI: 10.1016/j.biortech.2023.129243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/02/2023]
Abstract
This study proposed fresh leachate treatment with anaerobic membrane bioreactor (AnMBR) based on the on-site investigation of the characteristics of fresh leachate. Temperature-related profiles of fresh leachate properties, like chemical oxygen demand (COD), were observed. In addition, AnMBR achieved a high COD removal of 98% with a maximum organic loading rate (OLR) of 19.27 kg-COD/m3/d at the shortest hydraulic retention time (HRT) of 1.5 d. The microbial analysis implied that the abundant protein and carbohydrate degraders (e.g., Thermovirga and Petrimonas) as well as syntrophic bacteria, such as Syntrophomonas, ensured the effective adaptation of AnMBR to the reduced HRTs. However, an excessive OLR at 36.55 kg-COD/m3/d at HRT of 1 d resulted in a sharp decrease in key microbes, such as archaea (from 37% to 15%), finally leading to the deterioration of AnMBR. This study provides scientific guidance for treating fresh leachate by AnMBR and its full-scale application for high-strength wastewater.
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Affiliation(s)
- Weifu Yan
- Environmental Microbiome Engineering and Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Yulin Wang
- Environmental Microbiome Engineering and Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Yemei Li
- Laboratory of Environmental Protection Engineering, Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan
| | - Chao Rong
- Laboratory of Environmental Protection Engineering, Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan
| | - Dou Wang
- Environmental Microbiome Engineering and Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Chunxiao Wang
- Environmental Microbiome Engineering and Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Yubo Wang
- Environmental Microbiome Engineering and Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Yee-Lok Yuen
- Environmental Protection Department, The Government of the Hong Kong Special Administrative Region, Hong Kong Special Administrative Region
| | - Fanny Fong Wong
- Environmental Protection Department, The Government of the Hong Kong Special Administrative Region, Hong Kong Special Administrative Region
| | - Ho-Kwong Chui
- Environmental Protection Department, The Government of the Hong Kong Special Administrative Region, Hong Kong Special Administrative Region
| | - Yu-You Li
- Laboratory of Environmental Protection Engineering, Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba Ward, Sendai, Miyagi 980-8579, Japan
| | - Tong Zhang
- Environmental Microbiome Engineering and Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Hong Kong Special Administrative Region.
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137
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Ortmann AC, Cobanli SE, Wohlgeschaffen G, Poon HY, Ryther C, Greer CW, Wasserscheid J, Elias M, Robinson B, King TL. Factors that affect water column hydrocarbon concentrations have minor impacts on microbial responses following simulated diesel fuel spills. Mar Pollut Bull 2023; 194:115358. [PMID: 37567129 DOI: 10.1016/j.marpolbul.2023.115358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023]
Abstract
Effects of season and mixing on hydrocarbon concentrations and the microbial community response was explored in a series of mesocosm experiments simulating surface spills of diesel into coastal waters. Mixing of any amount contributed to hydrocarbons entering the water column, but diesel fuel composition had a significant effect on hydrocarbon concentrations. Higher initial concentrations of aromatic hydrocarbons resulted in higher water column concentrations, with minimal differences among seasons due to high variability. Regardless of the concentrations of hydrocarbons, prokaryotes increased and there were higher relative abundances of hydrocarbon affiliated bacteria with indications of biodegradation within 4 d of exposure. As concentrations decreased over time, the eukaryote community shifted from the initial community to one which appeared to be composed of organisms with some resilience to hydrocarbons. This series of experiments demonstrates the wide range of conditions under which natural attenuation of diesel fuel is an effective response.
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Affiliation(s)
- Alice C Ortmann
- Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada.
| | - Susan E Cobanli
- Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
| | - Gary Wohlgeschaffen
- Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
| | - Ho Yin Poon
- Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
| | - Camilla Ryther
- Dalhousie University, 6299 South Street, Halifax, NS B3H 4R2, Canada
| | - Charles W Greer
- National Research Council of Canada, Energy, Mining and Environment Research Centre, 6100 Royalmount Ave, Montreal, PQ H4P 2R2, Canada
| | - Jessica Wasserscheid
- National Research Council of Canada, Energy, Mining and Environment Research Centre, 6100 Royalmount Ave, Montreal, PQ H4P 2R2, Canada
| | - Miria Elias
- National Research Council of Canada, Energy, Mining and Environment Research Centre, 6100 Royalmount Ave, Montreal, PQ H4P 2R2, Canada
| | - Brian Robinson
- Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
| | - Thomas L King
- Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
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138
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Saini N, Aamir M, Singh VK, Deepak B, Mona S. Unveiling the microbial diversity and functional dynamics of Shiv Kund, Sohna hot spring, India through a shotgun metagenomics approach. Arch Microbiol 2023; 205:323. [PMID: 37651004 DOI: 10.1007/s00203-023-03664-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/07/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
In this research, we examined the microbial diversity in Sohna hot spring, Haryana, India using shotgun metagenome sequencing based on the Illumina Hiseq 4000 sequencing technology. The raw sequence data from metagenomic paired-end libraries were analysed for taxonomic classification, diversity, and functional annotation using MG-RAST online server. The results showed the presence of total of 57 phyla, 931 genera, and 2068 species, predominantly occupied by Moraxellaceae (Gammaproteobacteria). However, at the species level, we reported the presence of some representative pathogenic taxa, such as Acinetobacter baumannii and Moraxella osloensis. The functional annotation predicted at various levels based on SEED-based subsystem, KEGG ortholog identity (KO), Cluster of Orthologous Groups (COGs) database identified the predominance of genes associated with primary and secondary metabolism along with a crucial role in environmental and genetic signals, cellular communication, and cell signalling. Comparative Genome Analysis (CGA) using The Pathosystem Resource Integration Centre (PATRIC) tool based on genome annotation and assembly of the metagenomic libraries for representative taxon Acinetobacter baumannii (NCBI tax id:470) characterized the reads with a unique genome identifier of 470.20380 (A. baumannii DDLJ4) which is evolutionary closer to A. baumannii ATCC 470.17978 400667.7. In addition, the CARD database results about the presence of potential AMR pathotypes and the prevalence of adeABC, adeIJK, abeM gene-specific clusters that function as multidrug efflux pumps. Overall, the results provided a comprehensive insight into virulence and anti-microbial resistance mechanism and could be useful for developing potential drug targets against the possible AMR pathotypes.
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Affiliation(s)
- Neha Saini
- Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Mohd Aamir
- Division of Plant Pathology, ICAR-Indian Council of Agricultural Research, Pusa Campus, New Delhi, India
| | - Vinay Kumar Singh
- Centre for Bioinformatics, School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Bansal Deepak
- Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Sharma Mona
- Department of Environmental Studies, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendragarh, India.
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139
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Tomar S, Mitra D, Kumar G, Kashyap P, Sharma M, Kumar S, Sridhar K, Pant K. Microbial Diversity and Functional Potential of Keem: A Traditional Starter Culture for Alcoholic Beverage-Application of Next-Generation Amplicon and Shotgun Metagenome Sequences. Mol Biotechnol 2023:10.1007/s12033-023-00839-3. [PMID: 37566190 DOI: 10.1007/s12033-023-00839-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 07/13/2023] [Indexed: 08/12/2023]
Abstract
"Pakhoi" is an ethnic drink of the Tons valley, Uttarakhand, India produced by fermenting jaggery and barley with the help of a starter culture called "keem". In the present study, we investigated the microbial diversity and associated functional potential of "keem" using shotgun metagenome sequencing and amplicon sequencing. We also compared the taxonomic data obtained using these two sequencing techniques. The results showed that shotgun sequencing revealed a higher resolution of taxonomic profiling as compared to the amplicon sequencing. Furthermore, it was found that the genera detected by shotgun sequencing were valuable for facilitating the fermentation process. Additionally, to understand the functional profiling of the genera, different databases were used for annotation, resulting in a total of 13 metabolic pathways. The five most abundant KEGG functions were genetic information processing, metabolism, translation, cofactor and vitamin metabolism and xenobiotic degradation. In contrast, the top five COG were in order of highest frequency sequences belonging to transcription, followed by general function prediction, carbohydrate transport metabolism, amino acid transport and metabolism and translation and biogenesis. Gene ontology revealed many pathways, biochemical processes and molecular functions associated with the organisms forming the starter culture. Overall, the present study can help to understand the microbial diversity and its role in fermentation of traditional alcoholic beverages using "Keem".
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Affiliation(s)
- Shikha Tomar
- Department of Life Sciences, Graphic Era (Deemed to Be University), Dehradun, 248002, India
| | - Debasis Mitra
- Department of Microbiology, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Gaurav Kumar
- Department of Microbiology, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Piyush Kashyap
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Minaxi Sharma
- Department of Applied Biology, University of Science and Technology, Baridua, Meghalaya, 793101, India
| | - Shiv Kumar
- MMICT&BM (HM), Maharishi Markandeshwar (Deemed to Be University), Mullana, Haryana, 133207, India.
| | - Kandi Sridhar
- Department of Food Technology, Karpagam Academy of Higher Education (Deemed to Be University), Coimbatore, 641021, India.
| | - Kumud Pant
- Department of Biotechnology, Graphic Era (Deemed to Be University), Dehradun, Uttarakhand, 248002, India.
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140
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Turner T, Tonge D, Glanville HC, Wheeler R, Oliver IW. Microbial genome (Illumina MiSeq) sequencing of drinking water treatment residuals to evaluate compatibility with environmental applications. Environ Monit Assess 2023; 195:1027. [PMID: 37553528 PMCID: PMC10409814 DOI: 10.1007/s10661-023-11511-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 06/10/2023] [Indexed: 08/10/2023]
Abstract
The clarification of drinking water leads to the production of large quantities of water treatment residuals (WTRs). DNA was extracted from six WTR samples collected from water treatment plants within the UK to compare their bacterial communities and examine whether factors such as coagulant usage (aluminium versus iron salt), the type of water source (reservoir or river), or leachable chemical composition influence these communities. Bacterial 16S variable region 4 (V4) was amplified and sequenced using Illumina MiSeq sequencing. The most abundant phyla in WTR samples were Proteobacteria, Actinobacteria, Bacteroidetes, Acidobacteria, and Firmicutes, collectively representing 92.77-97.8% of the total bacterial sequences. Statistical analysis of microbial profiles indicated that water source played a significant role in microbial community structure, diversity, and richness, however coagulant type did not. PERMANOVA analysis showed that no single chemical variable (pH, organic matter, or extractable element concentration) influenced microbial composition significantly; however, canonical correspondence analysis of WTR microbiomes yielded a model using all these variables that could be used to explain variations in microbial community structures of WTRs (p < 0.05). No common, potentially toxic cyanobacteria, or related pathogens of concern were found. Analysis with PICRUSt showed that WTRs all had similar predicted microbial functional profiles. Overall, the results indicate that WTRs analysed in this study are unlikely to pose any threat to soil microbial community structure when applied to land as a soil conditioner or enhancer and may help to enhance the soil microbial community.
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Affiliation(s)
- Tomi Turner
- School of Geography, Geology and the Environment, Keele University, Keele, ST5 5BG UK
| | - Daniel Tonge
- School of Life Sciences, Keele University, Keele, ST5 5BG UK
| | - Helen C. Glanville
- School of Geography, Geology and the Environment, Keele University, Keele, ST5 5BG UK
- School of Social Sciences and Humanities, Loughborough University, LE11 3TU Loughborough, UK
| | - Rebecca Wheeler
- 4R Group, Control House, A1 Business Park, Knottingley Road, Knottingley, WF11 0BU UK
| | - Ian W. Oliver
- School of Geography, Geology and the Environment, Keele University, Keele, ST5 5BG UK
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141
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Cattò C, Mu A, Moreau JW, Wang N, Cappitelli F, Strugnell R. Biofilm colonization of stone materials from an Australian outdoor sculpture: Importance of geometry and exposure. J Environ Manage 2023; 339:117948. [PMID: 37080094 DOI: 10.1016/j.jenvman.2023.117948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/27/2023] [Accepted: 04/12/2023] [Indexed: 05/04/2023]
Abstract
The safeguarding of Australian outdoor stone heritage is currently limited by a lack of information concerning mechanisms responsible for the degradation of the built heritage. In this study, the bacterial community colonizing the stone surface of an outdoor sculpture located at the Church of St. John the Evangelist in Melbourne was analysed, providing an overview of the patterns of microbial composition associated with stone in an anthropogenic context. Illumina MiSeq 16S rRNA gene sequencing together with confocal laser microscope investigations highlighted the bacterial community was composed of both phototrophic and chemotrophic microorganisms characteristic of stone and soil, and typical of arid, salty and urban environments. Cardinal exposure, position and surface geometry were the most important factors in determining the structure of the microbial community. The North-West exposed areas on the top of the sculpture with high light exposure gave back the highest number of sequences and were dominated by Cyanobacteria. The South and West facing in middle and lower parts of the sculpture received significantly lower levels of radiation and were dominated by Actinobacteria. Proteobacteria were observed as widespread on the sculpture. This pioneer research provided an in-depth investigation of the microbial community structure on a deteriorated artistic stone in the Australian continent and provides information for the identification of deterioration-associated microorganisms and/or bacteria beneficial for stone preservation.
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Affiliation(s)
- Cristina Cattò
- Department of Food Environmental and Nutritional Sciences, Università Degli Studi di Milano, Milano, Italy; Department of Microbiology and Immunology, At the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
| | - Andre Mu
- Department of Microbiology and Immunology, At the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia; Doherty Applied Microbial Genomics, Department of Microbiology and Immunology, At the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
| | - John W Moreau
- School of Geographical and Earth Sciences, University of Glasgow, Glasgow, United Kingdom; School of Geographical, Atmospheric and Earth Sciences, The University of Melbourne, Parkville, VIC, Australia.
| | - Nancy Wang
- Department of Microbiology and Immunology, At the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
| | - Francesca Cappitelli
- Department of Food Environmental and Nutritional Sciences, Università Degli Studi di Milano, Milano, Italy.
| | - Richard Strugnell
- Department of Microbiology and Immunology, At the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
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Tsoukalas D, Hoel S, Lerfall J, Jakobsen AN. Photobacterium predominate the microbial communities of muscle of European plaice (Pleuronectes platessa) caught in the Norwegian sea independent of skin and gills microbiota, fishing season, and storage conditions. Int J Food Microbiol 2023; 397:110222. [PMID: 37099863 DOI: 10.1016/j.ijfoodmicro.2023.110222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023]
Abstract
The aim of this study was to investigate seasonal variations (September, December and April) in the initial microbial communities of skin and gills' external mucosal tissues (EMT) and muscle of European plaice (Pleuronectes platessa). Moreover, a potential relationship between EMT and fresh muscle microbiota was examined. The microbial community succession in plaice muscle as a function of fishing season and storage conditions was also investigated. The selected seasons for the storage experiment were September and April. Investigated storage conditions were; fillets packaged in either vacuum or modified atmosphere (70 % CO2, 20 % N2, 10 % O2) and chilled/refrigerated conditions (4 °C). Whole fish stored on ice (0 °C) was selected as a commercial standard. Seasonal variations were detected in the initial microbial communities of EMT and plaice muscle. The highest microbial diversity was found in EMT and muscle of April-caught plaice, followed by December and September catch indicating the important role of environmental factors in shaping the initial EMT and muscle microbial communities. The EMT microbial communities were more diverse than fresh muscle samples. The low number of shared taxa between EMT and initial muscle microbial communities indicates that only a minor part of the muscle microbiota came from the EMT. Psychrobacter and Photobacterium were the predominant genera in the EMT microbial communities in all seasons. Photobacterium dominated the initial muscle microbial communities with a gradual seasonal reduction of its abundance from September to April. Storage time and storage conditions shaped a less diverse and distinct community compared to the fresh muscle. However, no clear separation was seen between the communities at the middle and end of storage time. Regardless of EMT microbiota, fishing season and storage conditions, Photobacterium dominated the microbial communities of stored muscle samples. The Photobacterium prevalence as the primary specific spoilage organism (SSO) could be attributed to its high relative abundance in the initial microbiota of muscle and its CO2-tolerance. The findings of this study indicate the important contribution of Photobacterium to the microbial spoilage of plaice. Thus, the development of innovative preservation techniques addressing the rapid growth of Photobacterium could contribute to the production of high-quality and shelf-stable convenient retail plaice products.
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Affiliation(s)
- Dionysios Tsoukalas
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway.
| | - Sunniva Hoel
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Jørgen Lerfall
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Anita Nordeng Jakobsen
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
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143
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Zhang C, Wang G, Xu F, Wu Z, Shen C, Wu C, Zhong Z, Chen J. Ceramsite made from remediated soil: A risk assessment of its potential role serving as urban street cushion. Bull Environ Contam Toxicol 2023; 111:15. [PMID: 37452857 DOI: 10.1007/s00128-023-03753-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/23/2023] [Indexed: 07/18/2023]
Abstract
To promote the reuse of remediated soil (RS) and facilitate the cleanup of rainwater in sponge city, we investigated the effects of ceramsite made from RS serving as urban street cushion. Ceramsite was prepared by RS or pollution-free soil (PS) and showed no difference in physical properties. Compared with gravel, ceramsite had purification effects on effluents, reducing the content of chemical oxygen demand, total nitrogen, and ammoniacal nitrogen. However, the content of total phosphorus and the concentration of Cr(VI) and arsenic slightly increased in ceramsite groups, inferring potential risk. Microbial community analysis proved that ceramsite promoted microbial growth and increased microbial diversity. A long-term risk assessment indicated that ceramsite was good at fixing heavy metals during leaching process. Taken together, ceramsite prepared from RS could serve as excellent urban street cushion with little potential risk to surroundings.
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Affiliation(s)
- Chi Zhang
- Zhejiang University of Technology, Hangzhou, 310014, P. R. China
- Eco-Environmental Sciences Research & Design Institute of Zhejiang Province, Hangzhou, 310007, P. R. China
- Zhejiang Key Laboratory of Environmental Protect Technology, Hangzhou, 310007, P. R. China
| | - Genfu Wang
- Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Fengjun Xu
- Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA, 92521, USA
| | - Zhenghua Wu
- Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Chaofeng Shen
- Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Chao Wu
- Eco-Environmental Sciences Research & Design Institute of Zhejiang Province, Hangzhou, 310007, P. R. China
- Zhejiang Key Laboratory of Environmental Protect Technology, Hangzhou, 310007, P. R. China
| | - Zhong Zhong
- Eco-Environmental Sciences Research & Design Institute of Zhejiang Province, Hangzhou, 310007, P. R. China.
- Zhejiang Key Laboratory of Environmental Protect Technology, Hangzhou, 310007, P. R. China.
| | - Jianmeng Chen
- Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
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144
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Yu X, Zhang Y, Shen M, Dong S, Zhang F, Gao Q, He P, Shen G, Yang J, Wang Z, Bo G. Soil Conditioner Affects Tobacco Rhizosphere Soil Microecology. Microb Ecol 2023; 86:460-473. [PMID: 35596751 DOI: 10.1007/s00248-022-02030-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Reasonable fertilization management can increase nutrient content and enzyme activity in rhizosphere soil, and even increase soil microbial richness. However, different fertilizers could raise distinct influences on the soil properties, including soil environmental factors (physicochemical properties and enzymatic activities) and microbial community. Here, the effects of two soil amendments (microbial fertilizer and woody peat) on environmental factors and microbial community structure in tobacco rhizosphere soil were evaluated, with the correlations between microbes and environmental factors explored. As the results, microbial fertilizer could effectively alleviate soil acidification, increase available potassium and organic matter contents in soil, and was also beneficial to increase nitrate reductase activity in rhizosphere soil. Fertilizers cause changes in the abundance of certain microbes in the soil. Besides, it was shown that the candidate phyla Gal15, Acidobacterota, Latescibacterota, Mortierellommycota, Basidiomycota, and Rozellomycota in tobacco rhizosphere soil had significant correlation with soil environmental factors. Through the functional analysis of these populations, it can be deduced that the changes in the abundance of certain microorganisms may be an important reason for the differences in environmental factors. All these indicated that the differences of environmental factors in different treatments are closely related to the abundance of some special soil microorganisms. Studying the life activities of these microbes would provide good guidance for exploring the interaction among crops, soil, and microorganisms and improving crop yields.
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Affiliation(s)
- Xiangquan Yu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Yuzhen Zhang
- Energy-Rich Compounds Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Minchong Shen
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Shanyu Dong
- Yichang Tobacco Company of Hubei Province, Yichang, China
| | - Fujun Zhang
- Linyi Tobacco Company of Shandong Province, Linyi, China
| | - Qiang Gao
- Linyi Tobacco Company of Shandong Province, Linyi, China
| | - Penglin He
- Linyi Tobacco Company of Shandong Province, Linyi, China
| | - Guoming Shen
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Jianming Yang
- Energy-Rich Compounds Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Zhaobao Wang
- Energy-Rich Compounds Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China.
| | - Guodong Bo
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China.
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145
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Ren F, Liu M, Liu Y, Tian X, Jiang P, Tan B. Core microbes closely related with the nutrients and flavor of sweet fermented oats (whole grain food) from China. World J Microbiol Biotechnol 2023; 39:236. [PMID: 37369859 DOI: 10.1007/s11274-023-03680-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023]
Abstract
Increased attention has been given to whole grain and plant-based foods due to health concerns. Sweet fermented oats (SFOs) are such traditional fermented food from China. However, reports on their microbiota and relations with the nutrients and flavor were scarcely few, hindering their wider application. The comprehensive microbial composition, metabolic compounds and their correlations of representative SFOs from northwestern China were firstly investigated. Firmicutes predominated the microbial communities, followed by Proteobacteria. Weissella, Bacillus and Lactobacillus were dominant bacterial genera, biomarkers and core bacteria as well. GC-MS (Gas Chromatography-Mass Spectrometer) identified the metabolic compounds, among which the categories fatty acids and carboxylic acids most abundant. Eighteen chemicals showed significant differences among the five SFOs, including ethyl octanoate, neryl acetate, L-sorbose, diglycerol, cellotetraose etc. Fatty acids, carboxylic acids, amino acids, peptides, oligosaccharides, and monosaccharides were the key substances responsible for the unique flavor and rich nutrients in SFOs. The core bacteria were closely related to chemical acids, esters, flavone and alcohol. Pediococcus showed a negative correlation with 2,3-butanediol. SFOs were made in the laboratory with the core bacterial strains, obtaining a high abundance of nutrient chemicals and sensory evaluation value. The research provided a foundation for the improvement, further application and industrialization of SFOs.
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Affiliation(s)
- Fei Ren
- Academy of National Food and Strategic Reserves Administration, No.11 BaiWanZhuang Road, Beijing, 100037, China.
| | - Ming Liu
- Academy of National Food and Strategic Reserves Administration, No.11 BaiWanZhuang Road, Beijing, 100037, China
| | - Yanxiang Liu
- Academy of National Food and Strategic Reserves Administration, No.11 BaiWanZhuang Road, Beijing, 100037, China
| | - Xiaohong Tian
- Academy of National Food and Strategic Reserves Administration, No.11 BaiWanZhuang Road, Beijing, 100037, China
| | - Ping Jiang
- Academy of National Food and Strategic Reserves Administration, No.11 BaiWanZhuang Road, Beijing, 100037, China
| | - Bin Tan
- Academy of National Food and Strategic Reserves Administration, No.11 BaiWanZhuang Road, Beijing, 100037, China.
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146
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Martinez-Moreno MF, Povedano-Priego C, Morales-Hidalgo M, Mumford AD, Ojeda JJ, Jroundi F, Merroun ML. Impact of compacted bentonite microbial community on the clay mineralogy and copper canister corrosion: a multidisciplinary approach in view of a safe Deep Geological Repository of nuclear wastes. J Hazard Mater 2023; 458:131940. [PMID: 37390682 DOI: 10.1016/j.jhazmat.2023.131940] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/16/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
Deep Geological Repository (DGR) is the preferred option for the final disposal of high-level radioactive waste. Microorganisms could affect the safety of the DGR by altering the mineralogical properties of the compacted bentonite or inducing the corrosion of the metal canisters. In this work, the impact of physicochemical parameters (bentonite dry density, heat shock, electron donors/acceptors) on the microbial activity, stability of compacted bentonite and corrosion of copper (Cu) discs was investigated after one-year anoxic incubation at 30 ºC. No-illitization in the bentonite was detected confirming its structural stability over 1 year under the experimental conditions. The microbial diversity analysis based on 16 S rRNA gene Next Generation Sequencing showed slight changes between the treatments with an increase of aerobic bacteria belonging to Micrococcaceae and Nocardioides in heat-shock tyndallized bentonites. The survival of sulfate-reducing bacteria (the main source of Cu anoxic corrosion) was demonstrated by the most probable number method. The detection of CuxS precipitates on the surface of Cu metal in the bentonite/Cu metal samples amended with acetate/lactate and sulfate, indicated an early stage of Cu corrosion. Overall, the outputs of this study help to better understand the predominant biogeochemical processes at the bentonite/Cu canister interface upon DGR closure.
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Affiliation(s)
| | | | - Mar Morales-Hidalgo
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Adam D Mumford
- Department of Chemical Engineering, Faculty of Science and Engineering, Swansea University, Swansea, United Kingdom
| | - Jesus J Ojeda
- Department of Chemical Engineering, Faculty of Science and Engineering, Swansea University, Swansea, United Kingdom
| | - Fadwa Jroundi
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Mohamed L Merroun
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada, Spain
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147
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Graf M, Greenfield LM, Reay MK, Bargiela R, Williams GB, Onyije C, Lloyd CEM, Bull ID, Evershed RP, Golyshin PN, Chadwick DR, Jones DL. Increasing concentration of pure micro- and macro-LDPE and PP plastic negatively affect crop biomass, nutrient cycling, and microbial biomass. J Hazard Mater 2023; 458:131932. [PMID: 37390687 DOI: 10.1016/j.jhazmat.2023.131932] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/29/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
Over the last 50 years, the intense use of agricultural plastic in the form of mulch films has led to an accumulation of plastic in soil, creating a legacy of plastic in agricultural fields. Plastic often contains additives, however it is still largely unknown how these compounds affect soil properties, potentially influencing or masking effects of the plastic itself. Therefore, the aim of this study was to investigate the effects of pure plastics of varying sizes and concentrations, to improve our understanding of plastic-only interactions within soil-plant mesocosms. Maize (Zea mays L.) was grown over eight weeks following the addition of micro and macro low-density polyethylene and polypropylene at increasing concentrations (equivalent to 1, 10, 25, and 50 years mulch film use) and the effects of plastic on key soil and plant properties were measured. We found the effect of both macro and microplastic on soil and plant health is negligible in the short-term (1 to <10 years). However, ≥ 10 years of plastic application for both plastic types and sizes resulted in a clear negative effect on plant growth and microbial biomass. This study provides vital insight into the effect of both macro and microplastics on soil and plant properties.
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Affiliation(s)
- Martine Graf
- School of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, UK.
| | - Lucy M Greenfield
- School of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, UK
| | - Michaela K Reay
- Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
| | - Rafael Bargiela
- Centre of Environmental Biotechnology, Bangor University, Bangor, Gwynedd LL57 2UW, UK
| | - Gwion B Williams
- Centre of Environmental Biotechnology, Bangor University, Bangor, Gwynedd LL57 2UW, UK
| | - Charles Onyije
- Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
| | - Charlotte E M Lloyd
- Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
| | - Ian D Bull
- Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
| | - Richard P Evershed
- Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
| | - Peter N Golyshin
- Centre of Environmental Biotechnology, Bangor University, Bangor, Gwynedd LL57 2UW, UK
| | - David R Chadwick
- School of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, UK
| | - Davey L Jones
- School of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, UK; Centre of Environmental Biotechnology, Bangor University, Bangor, Gwynedd LL57 2UW, UK; SoilsWest, Centre for Sustainable Farming Systems, Food Futures Institute, Murdoch University, Murdoch, WA 6150, Australia
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148
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Pavić D, Grbin D, Blagajac A, Ćurko J, Fiket Ž, Bielen A. Impact of nutrients and trace elements on freshwater microbial communities in Croatia: identifying bacterial bioindicator taxa. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-28179-4. [PMID: 37328727 DOI: 10.1007/s11356-023-28179-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/05/2023] [Indexed: 06/18/2023]
Abstract
Since aquatic microbial communities promptly respond to environmental changes, it is now evident that they can complement traditional taxa such as fish, macroinvertebrates and algae as bioindicators of water quality. The aim of this study was to correlate the physico-chemical parameters of water with the microbial community structure and the occurrence of putative bioindicator taxa. Thirty-five water samples were collected throughout Croatia and their physico-chemical parameters, including the concentration of trace elements using the high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS), and the composition of the microbial communities by high-throughput sequencing of the 16S rRNA marker gene, were analysed in parallel. Partial least squares regression (PLS-R) modelling revealed that a number of microbial taxa were positively correlated with some of the water parameters. For example, some taxa from the phylum Proteobacteria were positively correlated with the ion content of the water (e.g. Erythrobacter, Rhodobacteraceae, Alteromonadaceae), while some Firmicutes taxa, such as the well-known faecal indicators Enterococcus and Clostridium, were correlated with nutrient content (ammonium and total phosphorus). Among the trace elements, uranium was positively correlated with a highest number of microbial taxa. The results obtained will aid in development of protocols for eDNA-based biological assessment of water quality.
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Affiliation(s)
- Dora Pavić
- Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Dorotea Grbin
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Amalija Blagajac
- Department of Food Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Josip Ćurko
- Department of Food Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Željka Fiket
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Zagreb, Croatia
| | - Ana Bielen
- Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia.
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149
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Zhang T, Li T, Zhou Z, Li Z, Zhang S, Wang G, Xu X, Pu Y, Jia Y, Liu X, Li Y. Cadmium-resistant phosphate-solubilizing bacteria immobilized on phosphoric acid-ball milling modified biochar enhances soil cadmium passivation and phosphorus bioavailability. Sci Total Environ 2023; 877:162812. [PMID: 36924951 DOI: 10.1016/j.scitotenv.2023.162812] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/15/2023] [Accepted: 03/08/2023] [Indexed: 05/06/2023]
Abstract
Cadmium (Cd) can accumulate in agriculture soil from the regular application of phosphorus (P) fertilizer. Microbiological method is considered as a potentially effective strategy that can not only remediate the Cd-contaminated soil but also provide the phosphorus needed for crop growth. However, the toxicity of Cd may affect the activity of microorganisms. To solve this problem, Klebsiella variicola with excellent phosphate solubilization ability (155.30 mg L-1 at 48 h) and Cd adsorption rate (90.84 % with 10 mg L-1 Cd initial concentration) was firstly isolated and identified in this study. Then, a phosphoric acid and ball milling co-modified biochar (PBC) was selected as the carrier to promote the activities of K. variicola under Cd pollution. Surface characterization revealed that the promotion of K. variicola by PBC was mainly attributed to the large specific surface area and diverse functional groups. Compared to contaminated soil, microbial PBC (MPBC) significantly increased the pakchoi biomass and phosphorus (P) content, while the Cd content in leave and root of pakchoi (Brassica chinensis L.) decreased by 25.90-43.46 % (P < 0.05). The combined application also favored the transformation of the resistant P fractions to bioavailable P, and facilitated the immobilization of 20.12 % exchangeable Cd to reducible, oxidizable, and residual Cd in the treated soil. High-throughput sequencing revealed that the response of the soil microbial community to the MPBC was more beneficial than K. variicola or PBC alone. Therefore, the application of MPBC has the potential to act as an efficient, stable, and environmentally friendly sustainable product for Cd remediation and enhanced P bioavailability in agricultural production.
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Affiliation(s)
- Tingrui Zhang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Ting Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China.
| | - Zijun Zhou
- Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
| | - Zengqiang Li
- College of Resources and Environment, Qingdao Agricultural University, Qingdao 266109, China
| | - Shirong Zhang
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Guiyin Wang
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoxun Xu
- College of Environmental Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Yulin Pu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Yongxia Jia
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaojing Liu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Yun Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
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150
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Li J, Zhang T, Shan X, Zheng W, Zhang Z, Ouyang Z, Liu P, Guo X. Abandoned disposable masks become hot substrates for plastisphere, whether in soil, atmosphere or water. J Hazard Mater 2023; 452:131321. [PMID: 37003000 PMCID: PMC10060800 DOI: 10.1016/j.jhazmat.2023.131321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Abstract
A large number of surgical masks (SMs) to be discarded indiscriminately during the spread of COVID-19. The relationship between the changes of masks entering the environment and the succession of the microorganisms on them is not yet clear. The natural aging process of SMs in different environments (water, soil, and atmosphere) was simulated, the changes and succession of the microbial community on SMs with aging time were explored. The results showed that the SMs in water environment had the highest aging degree, followed by atmospheric environment, and SMs in soil had the lowest aging degree. The results of high-throughput sequencing demonstrated the load capacity of SMs for microorganisms, showed the important role of environment in determining microbial species on SMs. According to the relative abundance of microorganisms, it is found that compared with the water environment, the microbial community on SMs in water is dominated by rare species. While in soil, in addition to rare species, there are a lot of swinging strains on the SMs. Uncovering the ageing of SMs in the environment and its association with the colonization of microorganisms will help us understand the potential of microorganisms, especially pathogenic bacteria, to survive and migrate on SMs.
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Affiliation(s)
- Jianlong Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tianli Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaoling Shan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wei Zheng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhenming Zhang
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550003, China.
| | - Zhuozhi Ouyang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peng Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xuetao Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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