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Chang TE, Huang KH, Luo JC, Huang YH, Lin HH, Fang WL, Hou MC. The alteration of fecal microbial and metabolic profile of gallstone patients in Taiwan: Single-center study. J Chin Med Assoc 2024; 87:572-580. [PMID: 38578093 DOI: 10.1097/jcma.0000000000001094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Gallstone disease is a common health problem worldwide. The role of the gut microbiota in gallstone pathogenesis remains obscure. Our aim was to evaluate the association and crosstalk between gut microbiota, gut metabolomic, and metabolic parameters in cholesterol gallstone patients, pigmented gallstone patients, and controls. METHODS We collected stool samples from healthy individuals and patients with gallstones in our hospital from March 2019 to February 2021. 16s rRNA sequencing was performed, followed by differential abundance analyses. Measurement of bile acids and short-chain fatty acids was conducted via targeted metabolomics. RESULT Thirty healthy individuals and 20 gallstone patients were recruited. The intergroup difference of microbial composition was significant between control and gallstone patients. The control group had more abundant Faecalibacterium , Prevotella 9 , and Bacteroides plebeius DSM 17135 . The cholesterol stones group had higher Desulfovibrionaceae and Bacteroides uniformis than the other two groups, while the pigment stone group had more abundant Escherichia-Shigella . In the analysis of metabolites, only n-butyric acid had a significantly higher concentration in the controls than in the gallstone group ( p < 0.01). The level of 3α-hydroxy-12 ketolithocholic acid, deoxycholic acid, and cholic acid showed no intergroup differences but was correlated to the serum cholesterol level and bacterial richness and evenness. CONCLUSION Our study revealed the key taxa that can discriminate between individuals with or without gallstones. We also identified metabolites that are possibly associated with metabolic parameter and bacterial diversity. However, the correlation of the metabolites to certain clusters of bacteria should be analyzed in a larger cohort.
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Affiliation(s)
- Tien-En Chang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Endoscopic Center for Diagnosis and Therapy, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
| | - Kuo-Hung Huang
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
- Division of General Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Jiing-Chyuan Luo
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
| | - Hung-Hsin Lin
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
- Division of Colorectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Wen-Liang Fang
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
- Division of General Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC
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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) 2024; 69:595-612. [PMID: 37843797 DOI: 10.1007/s12223-023-01095-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [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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Wu SI, Lee MC, Chen WL, Huang CC. Lacticaseibacillus paracasei PS23 increases ghrelin levels and modulates microbiota composition: a post-hoc analysis of a randomized controlled study. Food Funct 2024. [PMID: 38805370 DOI: 10.1039/d4fo01328j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Muscle damage can occur due to excessive, high-intensity, or inappropriate exercise. It is crucial for athletes and sports enthusiasts to have access to ways that expedite their recovery and alleviate discomfort. Our previous clinical trial demonstrated the anti-inflammatory and muscle damage-ameliorating properties of Lacticaseibacillus paracasei PS23 (PS23), prompting us to further explore the role of this probiotic in muscle damage recovery. This post-hoc analysis of a randomized controlled study investigated potential mediators between the intake of PS23 and the prevention of strength loss after muscle damage. We recruited 105 students from a sports university who had participated in the previously published clinical trial. These participants were randomly allocated to three groups, receiving capsuled live PS23 (L-PS23), heat-treated PS23 (HT-PS23), or a placebo over a period of six weeks. Baseline and endpoint measurements were taken for the levels of circulating ghrelin and other blood markers, stress, mood, quality of life, and the fecal microbiota. A significant increase in ghrelin levels was recorded in the L-PS23 group compared to the other groups. Additionally, both L-PS23 and HT-PS23 interventions led to positive shifts in the gut microbiota composition, particularly in elevated Lacticaseibacillus, Blautia, and Lactobacillus populations. The abundance of these bacteria was positively correlated with exercise performance and inversely correlated with inflammatory markers. In conclusion, dietary supplementation with PS23 may enhance exercise performance and influence muscle damage by increasing ghrelin levels and modulating the gut microbiota composition. Further clarification of the possible mechanisms and clinical implications is required.
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Affiliation(s)
- Shu-I Wu
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.
- Section of Psychiatry and Suicide Prevention Center, MacKay Memorial Hospital, Taipei, Taiwan
| | - Mon-Chien Lee
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City, Taiwan
- Center for General Education, Taipei Medical University, Taipei, Taiwan
| | - Wan-Lin Chen
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chi-Chang Huang
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City, Taiwan
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Yuan W, Wang S, Liang J, Shi J, Zhang Y, Ding C. Analysis of Salt Stress on Soil Microbial Community Composition and Its Correlation with Active Components in the Rhizosphere of Acanthopanax senticosus. Curr Microbiol 2024; 81:160. [PMID: 38695903 DOI: 10.1007/s00284-024-03687-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/01/2024] [Indexed: 05/16/2024]
Abstract
Salt stress can adversely affect plant seed germination, growth and development, and eventually lead to slow growth and even death of plants. The purpose of this study was to investigate the effects of different concentrations of NaCl and Na2SO4 stress on the physicochemical properties, enzyme activities, rhizosphere microbial community and seven active components (L-phenylalanine, Protocatechuic acid, Eleutheroside B, Chlorogenic acid, Caffeic acid, Eleutheroside E, Isofraxidin) of Acanthopanax senticosus rhizosphere soil. Statistical analysis was used to explore the correlation between the rhizosphere ecological factors of Acanthopanax senticosus and its active components. Compared with Acanthopanax senticosus under NaCl stress, Na2SO4 generally had a greater effect on Acanthopanax senticosus, which reduced the richness of fungi in rhizosphere soil and adversely affected the content of multiple active components. Pearson analysis showed that pH, organic matter, ammonium nitrogen, available phosphorus, available potassium, catalase and urease were significantly correlated with active components such as Caffeic acid and Isofraxidin. There were 11 known bacterial genera, 12 unknown bacterial genera, 9 known fungal genera and 1 unknown fungal genus significantly associated with the active ingredient. Salt stress had great changes in the physicochemical properties, enzyme activities and microorganisms of the rhizosphere soil of Acanthopanax senticosus. In conclusion, different types and concentrations of salts had different effects on Acanthopanax senticosus, and the active components of Acanthopanax senticosus were regulated by rhizosphere soil ecological factors.
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Affiliation(s)
- Wenhui Yuan
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Shouyu Wang
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Jingru Liang
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Jiajie Shi
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Yang Zhang
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Changhong Ding
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China.
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Zhou Z, Li Y, Wu S, Liu T, Jiang J. Host-microbiota interactions in collagen-induced arthritis rats treated with human umbilical cord mesenchymal stem cell exosome and ginsenoside Rh2. Biomed Pharmacother 2024; 174:116515. [PMID: 38569276 DOI: 10.1016/j.biopha.2024.116515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024] Open
Abstract
Mesenchymal stem cell exosome (MSCs-exo) is a class of products secreted by mesenchymal stem cells (MSCs) that contain various biologically active substances. MSCs-exo is a promising alternative to MSCs due to their lower immunogenicity and lack of ethical constraints. Ginsenoside Rh2 (Rh2) is a hydrolyzed component of the primary active substance of ginsenosides. Rh2 has a variety of pharmacological functions, including anti-inflammatory, anti-tumor, and antioxidant. Studies have demonstrated that gut microbiota and metabolites are critical in developing rheumatoid arthritis (RA). In this study, we constructed a collagen-induced arthritis (CIA) model in rats. We used MSCs-exo combined with Rh2 to treat CIA rats. To observe the effect of MSCs-exo combined with Rh2 on joint inflammation, rat feces were collected for 16 rRNA amplicon sequencing and untargeted metabolomics analysis. The results showed that the arthritis index score and joint swelling of CIA rats treated with MSCs-exo in combination with Rh2 were significantly lower than those of the model and MSCs-exo alone groups. MSCs-exo and Rh2 significantly ameliorated the disturbed gut microbiota in CIA rats. The regulation of Candidatus_Saccharibacteria and Clostridium_XlVb regulation may be the most critical. Rh2 enhanced the therapeutic effect of MSCs-exo compared with the MSCs-exo -alone group. Furthermore, significant changes in gut metabolites were observed in the CIA rat group, and these differentially altered metabolites may act as messengers for host-microbiota interactions. These differential metabolites were enriched into relevant critical metabolic pathways, revealing possible pathways for host-microbiota interactions.
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Affiliation(s)
- Zhongsheng Zhou
- Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yang Li
- Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Shuhui Wu
- Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Te Liu
- Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China; Yibin Jilin University Research Institute, Jilin University, Yibin, Sichuan, China.
| | - Jinlan Jiang
- Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China.
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Guillén-Chable F, Valdez Iuit JO, Avila Castro LA, Rosas C, Merino E, Rodríguez-Escamilla Z, Martínez-Núñez MA. Geographical distribution of mobile genetic elements in microbial communities along the Yucatan coast. PLoS One 2024; 19:e0301642. [PMID: 38683832 PMCID: PMC11057721 DOI: 10.1371/journal.pone.0301642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/19/2024] [Indexed: 05/02/2024] Open
Abstract
Horizontal gene transfer (HGT) is a well-documented strategy used by bacteria to enhance their adaptability to challenging environmental conditions. Through HGT, a group of conserved genetic elements known as mobile genetic elements (MGEs) is disseminated within bacterial communities. MGEs offer numerous advantages to the host, increasing its fitness by acquiring new functions that help bacteria contend with adverse conditions, including exposure to heavy metal and antibiotics. This study explores MGEs within microbial communities along the Yucatan coast using a metatranscriptomics approach. Prior to this research, nothing was known about the coastal Yucatan's microbial environmental mobilome and HGT processes between these bacterial communities. This study reveals a positive correlation between MGEs and antibiotic resistance genes (ARGs) along the Yucatan coast, with higher MGEs abundance in more contaminated sites. The Proteobacteria and Firmicutes groups exhibited the highest number of MGEs. It's important to highlight that the most abundant classes of MGEs might not be the ones most strongly linked to ARGs, as observed for the recombination/repair class. This work presents the first geographical distribution of the environmental mobilome in Yucatan Peninsula mangroves.
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Affiliation(s)
- Francisco Guillén-Chable
- UMDI-Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de México, Sisal, Yucatán, México
| | - Johnny Omar Valdez Iuit
- UMDI-Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de México, Sisal, Yucatán, México
| | | | - Carlos Rosas
- UMDI-Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de México, Sisal, Yucatán, México
| | - Enrique Merino
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Zuemy Rodríguez-Escamilla
- Facultad de Sistemas Biológicos e Innovación Tecnológica, Universidad Autónoma "Benito Juárez" de Oaxaca, Oaxaca de Juárez, Oaxaca, México
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Chen YC, Hou CY, Hsu MH, Huang LT, Hsiao CC, Sheen JM. The Impact of Gut Microbiota Changes on Methotrexate-Induced Neurotoxicity in Developing Young Rats. Biomedicines 2024; 12:908. [PMID: 38672262 PMCID: PMC11048417 DOI: 10.3390/biomedicines12040908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
Methotrexate (MTX) is an essential part of therapy in the treatment of acute lymphoblastic leukemia (ALL) in children, and inferior intellectual outcomes have been reported in children who are leukemia survivors. Although several studies have demonstrated that the interaction between gut microbiota changes and the brain plays a vital role in the pathogenesis of chemotherapy-induced brain injury, preexisting studies on the effect of MTX on gut microbiota changes focused on gastrointestinal toxicity only. Based on our previous studies, which revealed that MTX treatment resulted in inferior neurocognitive function in developing young rats, we built a young rat model mimicking MTX treatment in a child ALL protocol, trying to investigate the interactions between the gut and brain in response to MTX treatment. We found an association between gut microbiota changes and neurogenesis/repair processes in response to MTX treatment, which suggest that MTX treatment results in gut dysbiosis, which is considered to be related to MTX neurotoxicity through an alteration in gut-brain axis communication.
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Affiliation(s)
- Yu-Chieh Chen
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- Department of Traditional Medicine, Chang Gung University, Taoyuan 333, Taiwan
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Chih-Yao Hou
- Department of Seafood Science, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung 807, Taiwan
| | - Mei-Hsin Hsu
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
| | - Li-Tung Huang
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
| | - Chih-Cheng Hsiao
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- Department of Traditional Medicine, Chang Gung University, Taoyuan 333, Taiwan
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Jiunn-Ming Sheen
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- Department of Traditional Medicine, Chang Gung University, Taoyuan 333, Taiwan
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Cao K, Chen J, Li Q, Gu P, Li L, Huang R. Bacteria from nodules of Abrus mollis Hance: genetic diversity and screening of highly efficient growth-promoting strains. Front Microbiol 2024; 15:1345000. [PMID: 38680912 PMCID: PMC11045970 DOI: 10.3389/fmicb.2024.1345000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/21/2024] [Indexed: 05/01/2024] Open
Abstract
Introduction Abrus mollis Hance. (AM) is an important species used in southern Chinese medicine. It is mainly found in Guangdong and Guangxi provinces in China, and it is effective in the treatment of hepatitis. Endophytic bacteria are known to affect the growth and quality of medicinal plants. However, there are limited reports describing endophytic bacteria related to AM. Methods In the present study, Illumina-based 16S rRNA gene sequencing was used to investigate the endophytic bacterial communities of root nodules of AM at five sampling sites in Guangxi. In addition, 179 strains of endophytic bacteria were isolated and categorized into 13 haplotypes based on recA sequence analysis. Results The phylogeny of the 16S rRNA gene sequences revealed a predominance of nonrhizobial endophytes. Microbial diversity analysis showed that Proteobacteria was the dominant phylum in all samples, while Bradyrhizobium was the dominant genus in different samples. An efficient strain, Rhizobium tropici FM-19, was screened and obtained through greenhouse experiments. The AM plants inoculated with this strain showed the best growth performance and high nitrogen fixation and nodulation capacity. Notably, total phenols and total flavonoids, important active components in AM, increased by 30.9 and 42.7%, respectively, after inoculation with Rhizobium tropici FM-19. Discussion This study provides insights into the complex microbial diversity of AM nodules and provides strain information for the efficient cultivation of AM.
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Affiliation(s)
- Kexin Cao
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Jianhua Chen
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Qiuling Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Peng Gu
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Liangbo Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Rongshao Huang
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
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Guan L, Hu A, Ma S, Liu J, Yao X, Ye T, Han M, Yang C, Zhang R, Xiao X, Wu Y. Lactiplantibacillus plantarum postbiotic protects against Salmonella infection in broilers via modulating NLRP3 inflammasome and gut microbiota. Poult Sci 2024; 103:103483. [PMID: 38354474 PMCID: PMC10875300 DOI: 10.1016/j.psj.2024.103483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
Salmonella infection is a major concern in poultry production which poses potential risks to food safety. Our previous study confirmed that Lactiplantibacillus plantarum (LP) postbiotic exhibited a strong antibacterial capacity on Salmonella in vitro. This study aimed to investigate the beneficial effects and underlying mechanism of LP postbiotic on Salmonella-challenged broilers. A total of 240 one-day-old male yellow-feathered broilers were pretreated with 0.8% deMan Rogosa Sharpe (MRS) medium or 0.8% LP postbiotic (LP cell-free culture supernatant, LPC) in drinking water for 28 d, and then challenged with 1×109 CFU Salmonella enterica serovar Enteritidis (SE). Birds were sacrificed 3 d postinfection. Results showed that LPC maintained the growth performance by increasing body weight (BW), average daily gain (ADG), and average daily feed intake (ADFI) in broilers under SE challenge. LPC significantly attenuated SE-induced intestinal mucosal damage. Specifically, it decreased the intestinal injury score, increased villus length and villus/crypt, regulated the expression of intestinal injury-related genes (Villin, matrix metallopeptidase 3 [MMP3], intestinal fatty acid-binding protein [I-FABP]), and enhanced tight junctions (zona occludens-1 [ZO-1] and Claudin-1). SE infection caused a dramatic inflammatory response, as indicated by the up-regulated concentrations of interleukin (IL)-1β, IL-6, TNF-α, and the downregulation of IL-10, while LPC pretreatment markedly reversed this trend. We then found that LPC inhibited the activation of NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome by decreasing the gene expression of Caspase-1, IL-lβ, and IL-18. Furthermore, LPC suppressed NLRP3 inflammasome activation by inhibiting nuclear factor-kappa B (NF-κB) signaling pathway (the reduced levels of toll-like receptor 4 [TLR4], myeloid differentiation factor 88 [MyD88], and NF-κB). Finally, our results showed that LPC regulated gut microbiota by enhancing the percentage of Ligilactobacillus and decreasing Alistipes and Barnesiella. In summary, we found that LP postbiotic was effective to protect broilers against Salmonella infection, possibly through suppressing NLRP3 inflammasome and optimizing gut microbiota. Our study provides the potential of postbiotics on prevention of Salmonella infection in poultry.
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Affiliation(s)
- Leqi Guan
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Aixin Hu
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Shiyue Ma
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Jinsong Liu
- Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China
| | - Xianci Yao
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Ting Ye
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Meng Han
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Caimei Yang
- Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China
| | - Ruiqiang Zhang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Xiao Xiao
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Yanping Wu
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China.
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10
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Ho CT, Tatsuya U, Nguyen SG, Nguyen TH, Dinh ST, Le ST, Pham TMH. Seasonal Change of Sediment Microbial Communities and Methane Emission in Young and Old Mangrove Forests in Xuan Thuy National Park. J Microbiol Biotechnol 2024; 34:580-588. [PMID: 38321644 PMCID: PMC11016791 DOI: 10.4014/jmb.2311.11050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 02/08/2024]
Abstract
Microbial communities in mangrove forests have recently been intensively investigated to explain the ecosystem function of mangroves. In this study, the soil microbial communities under young (<11 years-old) and old (>17 years-old) mangroves have been studied during dry and wet seasons. In addition, biogeochemical properties of sediments and methane emission from the two different mangrove ages were measured. The results showed that young and old mangrove soil microbial communities were significantly different on both seasons. Seasons seem to affect microbial communities more than the mangrove age does. Proteobacteria and Chloroflexi were two top abundant phyla showing >15%. Physio-chemical properties of sediment samples showed no significant difference between mangrove ages, seasons, nor depth levels, except for TOC showing significant difference between the two seasons. The methane emission rates from the mangroves varied depending on seasons and ages of the mangrove. However, this did not show significant correlation with the microbial community shifts, suggesting that abundance of methanogens was not the driving factor for mangrove soil microbial communities.
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Affiliation(s)
- Cuong Tu Ho
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Unno Tatsuya
- Department of Microbiology, Chungbuk National University, Cheongju, Republic of Korea
| | - Son Giang Nguyen
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi 10072, Vietnam
| | - Thi-Hanh Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology, Ha Noi, 10072, Vietnam
| | | | - Son Tho Le
- College of Forestry Biotechnology, Vietnam National University of Forestry, Ha Noi, Vietnam
| | - Thi-Minh-Hanh Pham
- Institute of Mechanics, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
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11
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Wang TG, Tian L, Zhang XL, Zhang L, Zhao XL, Kong DS. Gradient inflammation in the pancreatic stump after pancreaticoduodenectomy: Two case reports and review of literature. World J Clin Cases 2024; 12:1649-1659. [PMID: 38576729 PMCID: PMC10989426 DOI: 10.12998/wjcc.v12.i9.1649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/26/2023] [Accepted: 03/07/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Postoperative pancreatic fistula (POPF) contributes significantly to morbidity and mortality after pancreaticoduodenectomy (PD). However, the underlying mechanisms remain unclear. This study explored this pathology in the pancreatic stumps and elucidated the mechanisms of POPF following PD. CASE SUMMARY Pathological analysis and 16S rRNA gene sequencing were performed on specimens obtained from two patients who underwent complete pancreatectomy for grade C POPF after PD. Gradient inflammation is present in the pancreatic stump. The apoptosis was lower than that in the normal pancreas. Moreover, neutrophil-dominated inflammatory cells are concentrated in the ductal system. Notably, neutrophils migrated through the ductal wall in acinar duct metaplasia-formed ducts. Additionally, evidence indicates that gut microbes migrate from the digestive tract. Gradient inflammation occurs in pancreatic stumps after PD. CONCLUSION The mechanisms underlying POPF include high biochemical activity in the pancreas, mechanical injury, and digestive reflux. To prevent POPF and address pancreatic inflammation and reflux, breaking the link with anastomotic dehiscence is practical.
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Affiliation(s)
- Tie-Gong Wang
- Department of Surgery, Cangzhou Central Hospital, Cangzhou 061000, Hebei Province, China
| | - Liang Tian
- Department of Pathology, Cangzhou Central Hospital, Cangzhou 061000, Hebei Province, China
| | - Xiao-Ling Zhang
- Department of Pathology, Cangzhou Central Hospital, Cangzhou 061000, Hebei Province, China
| | - Lei Zhang
- Department of Surgery, Cangzhou Central Hospital, Cangzhou 061000, Hebei Province, China
| | - Xiu-Lei Zhao
- Department of Surgery, Cangzhou Central Hospital, Cangzhou 061000, Hebei Province, China
| | - De-Shuai Kong
- Department of Surgery, Cangzhou Central Hospital, Cangzhou 061000, Hebei Province, China
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12
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Sun D, Huang Y, Wang Z, Tang X, Ye W, Cao H, Shen H. Soil microbial community structure, function and network along a mangrove forest restoration chronosequence. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169704. [PMID: 38163592 DOI: 10.1016/j.scitotenv.2023.169704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/23/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Mangrove forests have high ecological, social and economic values, but due to environmental changes and human activities, natural mangrove forests have experienced serious degradations and reductions in distribution area worldwide. In the coastal zones of southern China, an introduced mangrove species, Sonneratia apetala, has been extensively used for mangrove restoration because of its rapid growth and strong environmental adaptability. However, little is known about how soil microorganisms vary with the restoration stages of the afforested mangrove forests. Here, we examined the changes in soil physicochemical properties and microbial biomass, community structure and function, and network in three afforested S. apetala forests with restoration time of 7, 12, and 18 years and compared them with a bare flat and a 60-year-old natural Kandelia obovata forest in a mangrove nature reserve. Our results showed that the contents of soil salinity, organic carbon, total nitrogen, ammonium nitrogen, and microbial biomass increased, while soil pH and bacterial alpha diversity decreased with afforestation age. Soil microbial community structure was significantly affected by soil salinity, organic carbon, pH, total nitrogen, ammonium nitrogen, available phosphorus, and available kalium, and susceptibility to environmental factors was more pronounced in bacterial than fungal community structure. The relative abundances of aerobic chemoheterotrophy were significantly higher in 12- and 18-year-old S. apetala than in K. obovata forest, while that of sulfate-reducing bacteria showed a decreasing trend with afforestation age. The abundance of dung saprotroph was significantly higher in 12- and 18-year-old S. apetala forests than in the natural forest. With the increasing afforestation age, the modularity of microbial networks increased, while stability and robustness decreased. Our results suggest that planting S. apetala contributes to improving soil fertility and microbial biomass but may make soil microbial networks more vulnerable.
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Affiliation(s)
- Dangge Sun
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiyi Huang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhangming Wang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Xuli Tang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wanhui Ye
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Honglin Cao
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Shen
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
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13
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Kim JW, Hong YK, Kwon OK, Kim SC. Difference of Microbial Community in the Stream Adjacent to the Mixed Antibiotic Effluent Source. TOXICS 2024; 12:135. [PMID: 38393230 PMCID: PMC10891948 DOI: 10.3390/toxics12020135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/23/2024] [Accepted: 01/28/2024] [Indexed: 02/25/2024]
Abstract
Released antibiotics from source to stream can influence bacterial communities and potentially alter the ecosystem. This research provides a comprehensive examination of the sources, distribution, and bacterial community dynamics associated with varied antibiotic release sources adjacent to the stream. The residual of antibiotics from different sources was determined, and the bacterial community structure was examined to reveal the differences in the bacteria community in the stream. The residual of antibiotics was quantified with liquid chromatography-tandem mass spectrometry (LC-MS/MS), and the Illumina MiSeq platform was utilized to sequence bacterial 16S rRNA genes, providing comprehensive insights into the bacterial community structure in the sediment across five different sites. Results indicated that the presence and distribution of antibiotics were significantly influenced by released sources. In the case of the bacterial community, the Proteobacteria and Firmicutes were the most dominant phyla in the sediment, and especially, the Firmicutes showed higher abundance in sites mostly affected by livestock sources. Additionally, livestock gut bacteria such as Clostridium saudiense, Proteiniclasticum ruminis, and Turicibacter sanguinis were prevalent in antibiotic-contaminated sites adjacent to livestock facilities. Overall, this study provides critical insights into the effect of antibiotic contamination by verifying the relationship between the occurrence of antibiotic residuals and the alteration in the bacterial community in the stream.
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Affiliation(s)
- Jin-Wook Kim
- Department of Bio-Environmental Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Young-Kyu Hong
- Department of Bio-Environmental Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Oh-Kyung Kwon
- Biogas Research Center, Hankyung National University, Anseong 17579, Republic of Korea
| | - Sung-Chul Kim
- Department of Bio-Environmental Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
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14
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Fan S, Zheng M, Ren A, Mao H, Long D, Yang L. Effects of High-Concentrate-Induced SARA on Antioxidant Capacity, Immune Levels and Rumen Microbiota and Function in Goats. Animals (Basel) 2024; 14:263. [PMID: 38254432 PMCID: PMC10812789 DOI: 10.3390/ani14020263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
This study aims to explore the antioxidant, immune, and enzyme metabolism aspects in goats experiencing subacute ruminal acidosis (SARA). Furthermore, we seek to elucidate the relationship between the symbiotic microbiota of goats and their metabolic function. Sixteen goats were equally divided into two groups and fed a normal-concentrate diet (NC, 55% concentrate) or a high-concentrate diet (HC, 90% concentrate) for five weeks. We found that the HC diet reduced the total antioxidant capacity (T-AOC) (p = 0.022) and increased interleukin-1β (IL-1β) (p = 0.015), interleukin-4 (IL-4) (p = 0.008) and interleukin-6 (IL-6) (p = 0.002) concentration of goats. Simultaneously, the HC diet significantly increased the concentrations of alkaline phosphatase (ALP) and amylase (AMY) in the blood and rumen fluid of goats (p < 0.05). Microbial analysis in the rumen of goats revealed that the HC diet decreased bacterial richness and diversity, as evidenced by the changed observed species, Chao 1, PD whole tree and Shannon when compared to the NC diet (p < 0.01). The proportion of Proteobacteria increased while that of Spirochaetes and Fibrobacteres significantly decreased with the HC diet (p < 0.05). The Christensenellaceae_R-7_group and Ruminococcaceae_UCG-010 in rumen was notably decreased when a diet was switched from 55% concentrate diet to 90% concentrate diet (p < 0.05). Additionally, microbial functional potentials deduced that the HC diet significantly increased the abundance of the citrate cycle (TCA cycle) (ko00020) associated with carbohydrate metabolism (p = 0.028). Furthermore, the HC diet significantly increased the glutathione metabolism (ko00480) associated with the metabolism of other amino acids (p = 0.008). Our findings suggested that SARA reduced the total antioxidant capacity and increased levels of inflammatory factors in goats, as well as decreased rumen bacterial species and abundance.
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Affiliation(s)
| | | | | | | | | | - Lingyuan Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410125, China; (S.F.); (D.L.)
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15
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Chen F, Huang T, Wen G, Li K. Impact of artificial mixing and oxygenation on bacteria in a water transfer reservoir: Community succession and the role in water quality improvement. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168581. [PMID: 37967632 DOI: 10.1016/j.scitotenv.2023.168581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 10/26/2023] [Accepted: 11/12/2023] [Indexed: 11/17/2023]
Abstract
Artificial mixing and oxygenation induced by water-lifting aerations (WLAs) have the potential to improve water quality in reservoirs. However, there is a limited understanding of the bacterial community composition, assembly, and mechanisms behind water quality improvement under the influence of WLAs, especially in a water transfer reservoir. Here, the dynamics and relationship between water quality, bacterial diversity, and composition during the pre-operation, in-operation, and post-operation stages of WLAs were analyzed using high-throughput sequencing technology to explore the effects of artificially regulated bacteria on water quality improvement. WLAs operation led to the elimination of water stratification, significant bottom oxygenation, and reduction in nutrient concentrations. In addition, the operation of WLAs significantly changed the bacterial community composition, with an increase in richness, negligible difference in diversity, and a significant increase in the abundance of species with pollutant degradation functions, resulting in a shift from stochastic to deterministic processes of the bacterial community assembly. As a result, enhancement of the dominant bacteria responsible for organic matter degradation and denitrification and suppression of the emergence of algae-related bacteria were observed during the WLAs operation, and the ecosystem stability improved. Multiple analyses indicated a direct correlation between artificial mixing and oxygenation; changes in the bacterial community; and the reduction of nitrogen, phosphorus, and permanganate index in the water column. This study provides novel insights into in situ water quality enhancement and a valuable reference for understanding bacterial change patterns under artificially intervened conditions in water transfer reservoirs.
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Affiliation(s)
- Fan Chen
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Tinglin Huang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Gang Wen
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Kai Li
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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16
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Zhang F, Chen Y, Zhao F, Yuan P, Lu M, Qin K, Qin F, Fu S, Guo R, Feng Q. Use of magnetic powder to effectively improve the denitrification employing the activated sludge fermentation liquid as carbon source. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119049. [PMID: 37837762 DOI: 10.1016/j.jenvman.2023.119049] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/29/2023] [Accepted: 09/18/2023] [Indexed: 10/16/2023]
Abstract
Nitrogen removal is often limited in municipal wastewater treatment due to the lack of sufficient carbon source. Utilizing volatile fatty acids (VFAs) from waste activated sludge (WAS) fermentation broth as a carbon source is an ideal alternative to reduce the cost for wastewater treatment plants (WWTPs) and improve denitrification efficiency simultaneously. In this study, an anaerobic system was applied for simultaneous denitrification and WAS fermentation and the addition of magnetic microparticles (MMP) were confirmed to enhance both denitrification and WAS fermentation. Firstly, the addition of MMP increased the nitrate reduction rate by over 25.36% and improve the production of N2. Additionally, the equivalent chemical oxygen demand (COD) of the detected VFAs increased by 7.06%-14.53%, suggesting that MMP promoted the WAS fermentation. The electron transfer efficiency of denitrifies was accelerated by MMP via electron-transporting system (ETS) activity and cyclic voltammetry (CV) experiments, which might result in the promotional denitrification and WAS fermentation performance. Furthermore, the high-throughput sequencing displayed that, MMP enriched key microbes capable of degrading the complex organics (Chloroflexi, Synergistota and Spirochaetota) as well as the typical denitrifies (Bacteroidetes_vadinHA17 and Denitratisoma). Therefore, this study provides a novel strategy to realize simultaneous WAS utilization and denitrification for WWTPs.
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Affiliation(s)
- Fengyuan Zhang
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Ying Chen
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Feng Zhao
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Peiyao Yuan
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Mingyi Lu
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Kang Qin
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Fan Qin
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Shanfei Fu
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China
| | - Rongbo Guo
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China.
| | - Quan Feng
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; Shandong Energy Institute, Qingdao, 266101, PR China; Qingdao New Energy Shandong Laboratory, Qingdao, 266101, PR China.
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17
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Li Y, Hu C, Song R, Yin Z, Wang L, Shi L, Li W, Zheng Z, Yang M. The Difference in Diversity between Endophytic Microorganisms in White and Grey Zizania latifolia. J Fungi (Basel) 2023; 9:1067. [PMID: 37998872 PMCID: PMC10672487 DOI: 10.3390/jof9111067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/19/2023] [Accepted: 10/27/2023] [Indexed: 11/25/2023] Open
Abstract
The Zizania latifolia is usually infected by the obligate parasitic fungus Ustilago esculenta to form an edible fleshy stem which is an aquatic vegetable called Jiaobai in China. The infection by the teliospore (T) strain of U. esculenta induces Z. latifolia forming gray fleshy stems, while the mycelia-teliospore (MT) strain of U. esculenta induces white fleshy stems which are more suitable for edibility than gray fleshy stems. The mechanism of this phenomenon is still largely unknown. One of the possible causes is the diversity of endophytic microbial communities between these two fleshy stems. Therefore, we utilized fungal ITS1 and bacterial 16S rDNA amplicon sequencing to investigate the diversity of endophytic microbial communities in the two different fleshy stems of Z. latifolia. The results revealed that the α diversity and richness of endophytic fungi in white Z. latifolia were significantly greater than in gray Z. latifolia. The dominant fungal genus in both fleshy stems was U. esculenta, which accounted for over 90% of the endophytic fungi. The community composition of endophytic fungi in gray and white Z. latifolia was different except for U. esculenta, and a negative correlation was observed between U. esculenta and other endophytic fungi. In addition, the dominant bacterial genus in gray Z. latifolia was Alcaligenaceae which is also negatively correlated with other bacterium communities. Additionally, the co-occurrence network of white Z. latifolia was found to have a stronger scale, connectivity, and complexity compared to that of gray Z. latifolia. And the detected beneficial bacteria and pathogens in the stems of Z. latifolia potentially compete for resources. Furthermore, the function of endophytic bacteria is more abundant than endophytic fungi in Z. latifolia. This research investigated the correlation between the development of Z. latifolia fleshy stems and endophytic microbial communities. Our findings indicate that the composition of endophytic microbial communities is closely related to the type of Z. latifolia fleshy stems. This research also suggests the potential utilization of specific microbial communities to enhance the growth and development of Z. latifolia, thereby contributing to the breeding of Z. latifolia.
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Affiliation(s)
- Yipeng Li
- Zhejiang Provincial Key Laboratory of Characteristic Aquatic Vegetable Breeding and Cultivation, Jinhua Academy of Agricultural Sciences, Jinhua 321000, China; (Y.L.); (R.S.); (L.W.); (L.S.)
| | - Cailin Hu
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China; (C.H.); (Z.Y.); (W.L.)
| | - Ruiqi Song
- Zhejiang Provincial Key Laboratory of Characteristic Aquatic Vegetable Breeding and Cultivation, Jinhua Academy of Agricultural Sciences, Jinhua 321000, China; (Y.L.); (R.S.); (L.W.); (L.S.)
| | - Zhihui Yin
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China; (C.H.); (Z.Y.); (W.L.)
| | - Lingyun Wang
- Zhejiang Provincial Key Laboratory of Characteristic Aquatic Vegetable Breeding and Cultivation, Jinhua Academy of Agricultural Sciences, Jinhua 321000, China; (Y.L.); (R.S.); (L.W.); (L.S.)
| | - Lin Shi
- Zhejiang Provincial Key Laboratory of Characteristic Aquatic Vegetable Breeding and Cultivation, Jinhua Academy of Agricultural Sciences, Jinhua 321000, China; (Y.L.); (R.S.); (L.W.); (L.S.)
| | - Wei Li
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China; (C.H.); (Z.Y.); (W.L.)
| | - Zhaisheng Zheng
- Zhejiang Provincial Key Laboratory of Characteristic Aquatic Vegetable Breeding and Cultivation, Jinhua Academy of Agricultural Sciences, Jinhua 321000, China; (Y.L.); (R.S.); (L.W.); (L.S.)
| | - Mengfei Yang
- Zhejiang Provincial Key Laboratory of Characteristic Aquatic Vegetable Breeding and Cultivation, Jinhua Academy of Agricultural Sciences, Jinhua 321000, China; (Y.L.); (R.S.); (L.W.); (L.S.)
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18
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Cui S, Du J, Zhu L, Xin D, Xin Y, Zhang J. Analysis of Microbial Diversity in South Shetland Islands and Antarctic Peninsula Soils Based on Illumina High-Throughput Sequencing and Cultivation-Dependent Techniques. Microorganisms 2023; 11:2517. [PMID: 37894176 PMCID: PMC10609098 DOI: 10.3390/microorganisms11102517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
To assess the diversity of bacterial taxa in Antarctic soils and obtain novel microbial resources, 15 samples from 3 sampling sites (DIS5, GWS7, FPS10) of South Shetland Islands and 2 sampling sites (APS18, CIS17) of Antarctic Peninsula were collected. High-throughput sequencing (HTS) of 16S rRNA genes within these samples was conducted on an Illumina Miseq platform. A total of 140,303 16S rRNA gene reads comprising 802 operational taxonomic units (OTUs) were obtained. After taxonomic classification, 25 phyla, 196 genera, and a high proportion of unidentified taxa were detected, among which seven phyla and 99 genera were firstly detected in Antarctica. The bacterial communities were dominated by Actinomycetota (40.40%), Pseudomonadota (17.14%), Bacteroidota (10.55%) and Chloroflexota (10.26%). Based on the HTS analyses, cultivation-dependent techniques were optimized to identify the cultivable members. A total of 30 different genera including 91 strains were obtained, the majority of which has previously been reported from Antarctica. However, for the genera Microterricola, Dyadobacter, Filibacter, Duganella, Ensifer, Antarcticirhabdus and Microvirga, this is the first report in Antarctica. In addition, seven strains represented novel taxa, two of which were psychropoilic and could be valuable resources for further research of cold-adaptability and their ecological significance in Antarctica.
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Affiliation(s)
- Siqi Cui
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China; (S.C.); (J.D.); (L.Z.); (D.X.)
| | - Jie Du
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China; (S.C.); (J.D.); (L.Z.); (D.X.)
| | - Lin Zhu
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China; (S.C.); (J.D.); (L.Z.); (D.X.)
| | - Di Xin
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China; (S.C.); (J.D.); (L.Z.); (D.X.)
| | - Yuhua Xin
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China;
| | - Jianli Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China; (S.C.); (J.D.); (L.Z.); (D.X.)
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Liou CW, Cheng SJ, Yao TH, Lai TT, Tsai YH, Chien CW, Kuo YL, Chou SH, Hsu CC, Wu WL. Microbial metabolites regulate social novelty via CaMKII neurons in the BNST. Brain Behav Immun 2023; 113:104-123. [PMID: 37393058 DOI: 10.1016/j.bbi.2023.06.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023] Open
Abstract
Social novelty is a cognitive process that is essential for animals to interact strategically with conspecifics based on their prior experiences. The commensal microbiome in the gut modulates social behavior through various routes, including microbe-derived metabolite signaling. Short-chain fatty acids (SCFAs), metabolites derived from bacterial fermentation in the gastrointestinal tract, have been previously shown to impact host behavior. Herein, we demonstrate that the delivery of SCFAs directly into the brain disrupts social novelty through distinct neuronal populations. We are the first to observe that infusion of SCFAs into the lateral ventricle disrupted social novelty in microbiome-depleted mice without affecting brain inflammatory responses. The deficit in social novelty can be recapitulated by activating calcium/calmodulin-dependent protein kinase II (CaMKII)-labeled neurons in the bed nucleus of the stria terminalis (BNST). Conversely, chemogenetic silencing of the CaMKII-labeled neurons and pharmacological inhibition of fatty acid oxidation in the BNST reversed the SCFAs-induced deficit in social novelty. Our findings suggest that microbial metabolites impact social novelty through a distinct neuron population in the BNST.
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Affiliation(s)
- Chia-Wei Liou
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan; Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan.
| | - Sin-Jhong Cheng
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan.
| | - Tzu-Hsuan Yao
- Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan
| | - Tzu-Ting Lai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan; Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan
| | - Yu-Hsuan Tsai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan; Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan
| | - Che-Wei Chien
- Leeuwenhoek Laboratories Co. Ltd, Taipei 10672, Taiwan
| | - Yu-Lun Kuo
- Biotools Co. Ltd, New Taipei City 22175, Taiwan
| | - Shih-Hsuan Chou
- Biotools Co. Ltd, New Taipei City 22175, Taiwan; Graduate Institute of Biomedical and Pharmaceutical Science, Fu-Jen Catholic University, New Taipei City 24205, Taiwan
| | - Cheng-Chih Hsu
- Leeuwenhoek Laboratories Co. Ltd, Taipei 10672, Taiwan; Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Wei-Li Wu
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan; Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan.
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Zhang F, Chen Y, Shi X, Lu M, Qin K, Qin F, Guo R, Feng Q. Characterization of the microbial community and prediction of metabolic functions in an anaerobic/oxic system with magnetic micropolystyrene as a biocarrier. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108023-108034. [PMID: 37743451 DOI: 10.1007/s11356-023-29982-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/16/2023] [Indexed: 09/26/2023]
Abstract
Polystyrene (PS) and magnetic polystyrene (MPS) materials have been used extensively in wastewater treatment. In this research, a 55-day anaerobic/oxic process was carried out to evaluate the effects of PS and MPS on microorganisms under aerobic and anaerobic conditions. Scanning electron microscopy results revealed differences in the entanglement state of the sludge with the biocarrier due to differences in surface morphology. High-throughput sequencing analysis showed that the microbial communities differed considerably in the presence of PS and MPS addition under both aerobic and anaerobic conditions. The highest abundance and diversity were observed in the PS reactor, with 929 observed species and a PD_whole_tree index of 91.58 under anaerobic conditions. MPS promoted the enrichment of bacteria related to nitrogen recycling such as Nitrospirota which increased from 1.13% in the seeding sludge to 3.48% and 10.07% in the aerobic reactors with PS and MPS, respectively. Moreover, advanced analysis showed that PS inhibited many microbial functions (e.g., protein export, nitrogen metabolism), and MPS alleviated this inhibition. This study provides significant insights into the microbial effects of PS and MPS and may shed light on biocarrier selection in future studies.
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Affiliation(s)
- Fengyuan Zhang
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China
| | - Ying Chen
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China
| | - Xiaoshuang Shi
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China
| | - Mingyi Lu
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China
| | - Kang Qin
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, People's Republic of China
| | - Fan Qin
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China
| | - Rongbo Guo
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China
| | - Quan Feng
- Shandong Engineering Research Center for Biogas, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, People's Republic of China.
- Shandong Energy Institute, Qingdao, 266101, People's Republic of China.
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, People's Republic of China.
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Zhao J, Guan X, Shi X, Guo W, Luo X. Niche differentiation and influencing factors of nitrite oxidation bacteria Nitrospira in sediments of the Luan River estuary in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:103313-103323. [PMID: 37688699 DOI: 10.1007/s11356-023-29609-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 08/27/2023] [Indexed: 09/11/2023]
Abstract
In the estuarine sediment, the nitrite oxidation process mediated by bacteria significantly influences nitrification. Nitrospira is the most widely distributed nitrite-oxidizing bacteria (NOB) and can adapt to various environments. In this study, the Nitrospira-specific primer nxrB 169F-638R was used to analyze the microbial communities in the sediments of low-, middle-, and high-level zones in the Luan River estuary. The structure of the microbial community and its response to environmental factors were also assessed. The abundance and diversity of Nitrospira were the highest in the low-level zone and lowest in the high-level zone. Lineage II and lineage IV were the dominant Nitrospira at 43.58% and 32.09%, respectively. The distribution pattern of Nitrospira was also affected by complex environmental factors, such as the concentration of NH4+, Fe, and Cu cations. This study provides novel insights into the niche differentiation and adaptation strategies of Nitrospira in an estuarine sediment environment and will help to facilitate single-step nitrification.
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Affiliation(s)
- Jiawei Zhao
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Xiangyu Guan
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Xiaonan Shi
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Wei Guo
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Ximing Luo
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China.
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22
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Zhang SC, Zhang YL, Guo XJ, Luo M, Li SD, Guo RJ. Combination of Bacillus and Low Fertigation Input Promoted the Growth and Productivity of Chinese Cabbage and Enriched Beneficial Rhizosphere Bacteria Lechevalieria. BIOLOGY 2023; 12:1130. [PMID: 37627014 PMCID: PMC10452305 DOI: 10.3390/biology12081130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/05/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Long-term overfertilization increases soil salinity and disease occurrence and reduces crop yield. Integrated application of microbial agents with low fertigation input might be a sustainable and cost-effective strategy. Herein, the promoting effects of Bacillus velezensis B006 on the growth of Chinese cabbage under different fertigation conditions in field trials were studied and the underlying mechanisms were revealed. In comparison with normal fertigation (water potential of -30 kPa and soluble N, P, K of 29.75, 8.26, 21.48 Kg hm-2) without B006 application, the combination of B. velezensis B006 and reduced fertigation input (-50 kPa and N, P, K of 11.75, 3.26, 6.48 Kg hm-2) promoted cabbage growth and root development, restrained the occurrence of soft rot disease, and improved the yield. High-performance liquid chromatography (HPLC) analyses indicated that B006 application promoted the production of indole-3-acetic acid and salicylic acid in cabbage roots, which are closely related to plant growth. Rhizosphere microbiota analyses indicated that the combination of low fertigation input and B006 application promoted the enrichment of Streptomyces, Lechevalieria, Promicromonospora, and Aeromicrobium and the abundance of Lechevalieria was positively correlated with the root length and vitality. This suggested that the integrated application of reduced fertigation and Bacillus is highly efficient to improve soil ecology and productivity and will benefit the sustainable development of crop cultivation in a cost-effective way.
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Affiliation(s)
- Shi-Chang Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China
| | - Yu-Lu Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiao-Jing Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ming Luo
- College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China
| | - Shi-Dong Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Rong-Jun Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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23
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Weingarten EA, Jackson CR. Microbial Composition of Freshwater Marsh Sediment Responds more Strongly to Microcosm Seawater Addition than Simulated Nitrate or Phosphate Eutrophication. MICROBIAL ECOLOGY 2023; 86:1060-1070. [PMID: 36152034 DOI: 10.1007/s00248-022-02111-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
As sea level rise impacts coastal wetlands, saltmarsh will overtake coastal freshwater marsh in many areas, but changes in the sediment microbiome in response to saltwater intrusion are difficult to predict. Coastal freshwater marsh sediment was exposed to ambient, brackish, and saline conditions as well as to elevated nitrate and phosphate to model the combined stresses of saltwater intrusion and coastal eutrophication. Initially, sediment prokaryotic composition was similar to prior studies of freshwater marsh but diverged over time, reflecting the magnitude of increase in saltwater. There was no observed effect of nutrient amendment, potentially ranking seawater intrusion as a higher-importance compositional driver. Although the previously described loss of methanogenic populations and promotion of sulfate reducers in response to saltwater exposure was observed, taxonomic distribution was not similar to typical meso-polyhaline wetlands. Without colonization by marine taxa, such a community may be short-lived naturally, ultimately equilibrating with more common saltmarsh species. However, the recapitulation of salinity concentration by freshwater sediment microbial composition demonstrates the overwhelming nature of saltwater intrusion relative to other drivers like eutrophication.
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Affiliation(s)
- Eric A Weingarten
- Department of Biology, University of Mississippi, University, MS, 38677, USA.
- Environmental Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS, 39180, USA.
| | - Colin R Jackson
- Department of Biology, University of Mississippi, University, MS, 38677, USA
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Xiong R, Li Y, Gao X, Li N, Lou R, Saeed L, Huang J. Effects of a long-term operation wetland for wastewater treatment on the spatial pattern and function of microbial communities in groundwater. ENVIRONMENTAL RESEARCH 2023; 228:115929. [PMID: 37072080 DOI: 10.1016/j.envres.2023.115929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/12/2023] [Accepted: 04/15/2023] [Indexed: 05/16/2023]
Abstract
Constructed wetlands have been used globally for wastewater treatment owing to low energy inputs and operating costs. However, the impact of their long-term operation on groundwater microbial communities is still unclear. This study aims to investigate the effects and further reveal the linkage between a large-scale surface flow constructed wetland (in operation for 14 years) and groundwater. Changes in the characteristics of groundwater microbial communities and their potential influencing factors were studied based on hydrochemical analysis, Illumina MiSeq sequencing, and multivariate statistical analysis methods. Results show that the long-term operation wetland significantly elevated groundwater nutrient levels and increased the risk of ammonia nitrogen pollution compared to background values. An apparent heterogeneity of microbial communities exhibited in the vertical direction and a similarity in the horizontal direction. Wetland operations substantially altered the structure of microbial communities at 3, 5, and 12 m depths, particularly a reduced abundance of denitrifying and chemoheterotrophic functional genera. The formation and evolution of groundwater microbial community structure mainly subjected to the contributions of dissolved oxygen (33.70%), total nitrogen (21.40%), dissolved organic carbon (11.09%), and pH (10.60%) variations resulted from the wetland operation and largely differed in depths. A combined effect of these factors on the groundwater should be concerned for such a long-term running wetland system. This study provides a new insight into the responses of groundwater microbial community structure driving by wetland operation and a better understanding of corresponding variation of microbial-based geochemical processes.
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Affiliation(s)
- Rongwei Xiong
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yong Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 210098, PR China.
| | - Xiufang Gao
- College of Resources and Environment, Yangtze University, Wuhan, 430100, PR China; Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Jingzhou, 434025, PR China
| | - Na Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Ruitao Lou
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Laraib Saeed
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Jinquan Huang
- Department of Soil and Water Conservation, Yangtze River Scientific Research Institute, Wuhan, 430010, PR China
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Wainwright BJ, Millar T, Bowen L, Semon L, Hickman KJE, Lee JN, Yeo ZY, Zahn G. The core mangrove microbiome reveals shared taxa potentially involved in nutrient cycling and promoting host survival. ENVIRONMENTAL MICROBIOME 2023; 18:47. [PMID: 37264467 DOI: 10.1186/s40793-023-00499-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 05/01/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Microbes have fundamental roles underpinning the functioning of our planet, they are involved in global carbon and nutrient cycling, and support the existence of multicellular life. The mangrove ecosystem is nutrient limited and if not for microbial cycling of nutrients, life in this harsh environment would likely not exist. The mangroves of Southeast Asia are the oldest and most biodiverse on the planet, and serve vital roles helping to prevent shoreline erosion, act as nursery grounds for many marine species and sequester carbon. Despite these recognised benefits and the importance of microbes in these ecosystems, studies examining the mangrove microbiome in Southeast Asia are scarce.cxs RESULTS: Here we examine the microbiome of Avicenia alba and Sonneratia alba and identify a core microbiome of 81 taxa. A further eight taxa (Pleurocapsa, Tunicatimonas, Halomonas, Marinomonas, Rubrivirga, Altererythrobacte, Lewinella, and Erythrobacter) were found to be significantly enriched in mangrove tree compartments suggesting key roles in this microbiome. The majority of those identified are involved in nutrient cycling or have roles in the production of compounds that promote host survival. CONCLUSION The identification of a core microbiome furthers our understanding of mangrove microbial biodiversity, particularly in Southeast Asia where studies such as this are rare. The identification of significantly different microbial communities between sampling sites suggests environmental filtering is occurring, with hosts selecting for a microbial consortia most suitable for survival in their immediate environment. As climate change advances, many of these microbial communities are predicted to change, however, without knowing what is currently there, it is impossible to determine the magnitude of any deviations. This work provides an important baseline against which change in microbial community can be measured.
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Affiliation(s)
- Benjamin J Wainwright
- Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, Singapore, 117558, Singapore.
- Yale-NUS College, National University of Singapore, 16 College Avenue West, Singapore, 138527, Singapore.
| | - Trevor Millar
- Biology Department, Utah Valley University, 800 W University Parkway, Orem, UT, 84058, USA
| | - Lacee Bowen
- Biology Department, Utah Valley University, 800 W University Parkway, Orem, UT, 84058, USA
| | - Lauren Semon
- Biology Department, Utah Valley University, 800 W University Parkway, Orem, UT, 84058, USA
| | - K J E Hickman
- Biology Department, Utah Valley University, 800 W University Parkway, Orem, UT, 84058, USA
| | - Jen Nie Lee
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Zhi Yi Yeo
- Yale-NUS College, National University of Singapore, 16 College Avenue West, Singapore, 138527, Singapore
| | - Geoffrey Zahn
- Biology Department, Utah Valley University, 800 W University Parkway, Orem, UT, 84058, USA
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Xia Y, He R, Xu W, Zhang J. The Zoige pioneer plant Leymus secalinus has different endophytic bacterial community structures to adapt to environmental conditions. PeerJ 2023; 11:e15363. [PMID: 37220526 PMCID: PMC10200098 DOI: 10.7717/peerj.15363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/16/2023] [Indexed: 05/25/2023] Open
Abstract
Background Leymus secalinus is a pioneer plant grown in the Zoige desertified alpine grassland and it is also one of the dominant plant species used for environmental remediation. L. secalinus plays a large role in vegetation reconstruction in sandy land, but the abundance and diversity of its endophytes have not yet been investigated. Objectives This study was performed to investigate the changes in the endophytic bacterial community structure of L. secalinus under different ecological environments and to analyze the effects of environmental changes and different plant tissues on the L. secalinus endophytic bacteria. Methods Leaf, stem, and root tissue samples of L. secalinus were collected from Zoige Glassland (Alpine sandy land) and an open field nursery (Control). DNA was extracted and the 16S ribosomal DNA was amplified. The sequence library was sequenced on an Illumina MiSeq platform and clustered by operational taxonomic units (OTUs). α-diversity and β-diversity analyses, species diversity analyses, functional prediction, and redundancy (RDA) analyses for the soil physicochemical properties were conducted. Results α-diversity and β-diversity analyses showed that the endophytic bacteria in L. secalinus varied in different areas and tissues. The abundance of Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, which is related to nitrogen fixation, increased significantly in the L. secalinus found in the Zoige Grassland.Moreover, the abundance of nutrition metabolism and anti-stress abilities increased in functional prediction in the desert samples. The soil physicochemical properties had an insignificant influence on bacterial diversity. Conclusion The changes in the endophytic bacterial community structure in L. secalinus were significant and were caused by environmental alterations and plant choice. The endophytic bacteria in L. secalinus grown in alpine sandy land may have greater anti-stress properties and the ability to fix nitrogen, which has potential value in environmental remediation and agricultural production.
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Affiliation(s)
- Yue Xia
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Ruipeng He
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Wanru Xu
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Jie Zhang
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
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Zhang ZW, Han P, Fu J, Yu H, Xu H, Hu JC, Lu JY, Yang XY, Zhang HJ, Bu MM, Jiang JD, Wang Y. Gut microbiota-based metabolites of Xiaoyao Pills (a typical Traditional Chinese medicine) ameliorate depression by inhibiting fatty acid amide hydrolase levels in brain. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116555. [PMID: 37100263 DOI: 10.1016/j.jep.2023.116555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicines (TCMs) are often prepared in oral dosage forms, making TCMs interact with gut microbiota after oral administration, which could affect the therapeutic effect of TCM. Xiaoyao Pills (XYPs) are a commonly used TCM in China to treat depression. The biological underpinnings, however, are still in its infancy due to its complex chemical composition. AIM OF THE STUDY The study aims to explore XYPs' underlying antidepressant mechanism from both in vivo and in vitro. MATERIALS AND METHODS XYPs were composed of 8 herbs, including the root of Bupleurum chinense DC., the root of Angelica sinensis (Oliv.) Diels, the root of Paeonia lactiflora Pall., the sclerotia of Poria cocos (Schw.) Wolf, the rhizome of Glycyrrhiza uralensis Fisch., the leaves of Mentha haplocalyx Briq., the rhizome of Atractylis lancea var. chinensis (Bunge) Kitam., and the rhizome of Zingiber officinale Roscoe, in a ratio of 5:5:5:5:4:1:5:5. The chronic unpredictable mild stress (CUMS) rat models were established. After that, the sucrose preference test (SPT) was carried out to evaluate if the rats were depressed. After 28 days of treatment, the forced swimming test and SPT were carried out to evaluate the antidepressant efficacy of XYPs. The feces, brain and plasma were taken out for 16SrRNA gene sequencing analysis, untargeted metabolomics and gut microbiota transformation analysis. RESULTS The results revealed multiple pathways affected by XYPs. Among them, the hydrolysis of fatty acids amide in brain decreased most significant via XYPs treatment. Moreover, the XYPs' metabolites which mainly derived from gut microbiota (benzoic acid, liquiritigenin, glycyrrhetinic acid and saikogenin D) were found in plasma and brain of CUMS rats and could inhibit the levels of FAAH in brain, which contributed to XYPs' antidepressant effect. CONCLUSIONS The potential antidepressant mechanism of XYPs by untargeted metabolomics combined with gut microbiota-transformation analysis was revealed, which further support the theory of gut-brain axis and provide valuable evidence of the drug discovery.
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Affiliation(s)
- Zheng-Wei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Pei Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Jie Fu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Hang Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Hui Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Jia-Chun Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Jin-Yue Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Xin-Yu Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Hao-Jian Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Meng-Meng Bu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Jian-Dong Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
| | - Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100050, China.
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Lin YY, Chang PE, Shen SY, Wang SD. Effects of indoor and outdoor rearing system on geese biochemical parameters and cecal microbial composition. Poult Sci 2023; 102:102731. [PMID: 37276705 PMCID: PMC10276145 DOI: 10.1016/j.psj.2023.102731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 06/07/2023] Open
Abstract
The present study aimed to investigate the impact of indoor and outdoor rearing systems on the biochemistry and microbial composition of White Roman geese, with a particular focus on the gut microbiome. Our results showed that geese reared in an outdoor system had significantly lower serum aspartate aminotransferase (AST) compared to those reared indoors, but lower levels of high-density lipoprotein (HDL) and higher levels of low-density lipoprotein (LDL). Moreover, the cecal microbiota of geese reared outdoors exhibited higher species evenness and increased alpha diversity, with a significant alteration in the F/B ratios. The bacterial taxonomy composition also differed between the 2 rearing systems, with higher relative abundances of the Firmicutes and Actinobacteria and lower relative abundances of the Bacteroidetes and Proteobacteria in the outdoor system. These findings suggest that rearing systems may play a critical role in shaping the gut microbiome and overall health of geese. Notably, our data demonstrated that indoor rearing was associated with a higher abundance of pathogenic genera and a lower abundance of commensal genera compared to outdoor rearing. Our study supports the hypothesis that rearing systems may alter the physiological functions and microbial composition of geese, and highlights the need for further research to confirm and expand upon these findings. In summary, our study underscores the importance of considering the impact of rearing systems on the gut microbiome and health of geese.
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Affiliation(s)
- Yuan-Yu Lin
- Department of Animal Science and Technology, National Taiwan University, Taipei City 106, Taiwan.
| | - Pei-En Chang
- Institute of Biotechnology, National Taiwan University, Taipei City 106, Taiwan
| | - Shih-Yi Shen
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Changhua 521, Taiwan
| | - Sheng-Der Wang
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Changhua 521, Taiwan
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Zheng X, Xu S, Bi Y, Cheng G, Ma S, Zhang H, Jiang C, Wang C, Lyu P, Qin Y, Zhuang X. Purification performance from bypass ecological treatment systems treating WWTPs effluents and improvement of water quality in receiving rivers: A case study in southern China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 329:117052. [PMID: 36535139 DOI: 10.1016/j.jenvman.2022.117052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Effluents from wastewater treatment plants (WWTPs) is the main source of pollution in rivers in developing countries. In this case study, three bypass ecological treatment systems along urban rivers achieved high removal efficiencies for chemical oxygen demand (COD; 55.7-64.0%), ammonium N (NH4+-N; 63.1-89.4%) and total phosphorous (TP; 27.6-76.7%). 16 S rRNA gene sequencing analysis confirmed that Proteobacteria was the main bacterial phylum (44.4%) in the ecological treatment system, and members were enriched significantly in the non-aeration area (59.3%). The relative abundance of Nitrospirae was highest in the inflow area (25.0%), but restrained in the non-aeration area (5.7%). 18 S rRNA gene annotation results indicated that phylum Rotifer was gradually inhibited with the direction of water flow and diffusion, while phylum Rhodophyta displayed the opposite trend. After implementation of bypass ecological treatment systems, receiving rivers were improved significantly from Grade Ⅴ to Ⅳ, and the biodiversity of zooplankton, zoobenthos and fish communities was greatly improved.
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Affiliation(s)
- Xiaoxu Zheng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shengjun Xu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yeliang Bi
- School of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan, 056038, China
| | - Gong Cheng
- Shenzhen Academy of Environmental Sciences, Shenzhen, 518001, China
| | - Shuanglong Ma
- Shenzhen BLY Landscape & Architecture Planning & Design Institute, Shenzhen, 518055, China
| | - Hao Zhang
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Cancan Jiang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cong Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ping Lyu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yu Qin
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xuliang Zhuang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Ye J, Yang H, Hu W, Tang K, Liu A, Bi S. Changed cecal microbiota involved in growth depression of broiler chickens induced by immune stress. Poult Sci 2023; 102:102598. [PMID: 36913756 PMCID: PMC10023976 DOI: 10.1016/j.psj.2023.102598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
A previous study identified genes and metabolites associated with amino acid metabolism, glycerophospholipid metabolism, and inflammatory response in the liver of broilers with immune stress. The present research was designed to investigate the effect of immune stress on the cecal microbiome in broilers. In addition, the correlation between altered microbiota and liver gene expression, the correlation between altered microbiota and serum metabolites were compared using the Spearman correlation coefficients. Eighty broiler chicks were randomly assigned to 2 groups with 4 replicate pens per group and 10 birds per pen. The model broilers were intraperitoneally injected of 250 µg/kg LPS at 12, 14, 33, and 35 d of age to induce immunological stress. Cecal contents were taken after the experiment and kept at -80°C for 16S rDNA gene sequencing. Then the Pearson's correlation between gut microbiome and liver transcriptome, between gut microbiome and serum metabolites were calculated using R software. The results showed that immune stress significantly changed microbiota composition at different taxonomic levels. KEGG pathways analysis suggested that these gut microbiota were mainly involved in biosynthesis of ansamycins, glycan degradation, D-glutamine and D-glutamate metabolism, valine, leucine, and isoleucine biosynthesis and biosynthesis of vancomycin group antibiotics. Moreover, immune stress increased the activities of metabolism of cofactors and vitamins, as well as decreased the ability of energy metabolism and digestive system. Pearson's correlation analysis identified several bacteria were positively correlated with the gene expression while a few of bacteria were negatively correlated with the gene expression. The results identified potential microbiota involvement in growth depression mediated by immune stress and provided strategies such as supplement of probiotic for alleviating immune stress in broiler chickens.
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Affiliation(s)
- Jixuan Ye
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing, China
| | - Huaao Yang
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing, China
| | - Weidong Hu
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing, China
| | - Keyi Tang
- College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
| | - Anfang Liu
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Southwest University, Rongchang, Chongqing, China
| | - Shicheng Bi
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing, China.
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Song P, Liu J, Huang P, Han Z, Wang D, Sun N. Diversity and structural analysis of rhizosphere soil microbial communities in wild and cultivated Rhizoma Atractylodis Macrocephalae and their effects on the accumulation of active components. PeerJ 2023; 11:e14841. [PMID: 36811005 PMCID: PMC9939024 DOI: 10.7717/peerj.14841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/11/2023] [Indexed: 02/18/2023] Open
Abstract
Rhizosphere microorganisms are the main factors affecting the formation of high quality medicinal materials and promoting the accumulation of secondary metabolites. However, the composition, diversity, and function of rhizosphere microbial communities in endangered wild and cultivated Rhizoma Atractylodis Macrocephalae (RAM) and their relationships with active component accumulation have remained unclear. In this study, high-throughput sequencing and correlation analysis were used to study the rhizosphere microbial community diversity (bacteria and fungi) of three RAM species and its correlation with the accumulation of polysaccharides, atractylone, and lactones (I, II, and III). A total of 24 phyla, 46 classes, and 110 genera were detected. The dominant taxa were Proteobacteria, Ascomycota, and Basidiomycota. The microbial communities in both wild and artificially cultivated soil samples were extremely species-rich, but there were some differences in their structure and the relative abundances of microorganism taxa. Meanwhile, the contents of effective components in wild RAM were significantly higher than those in cultivated RAM. Correlation analysis showed that 16 bacterial and 10 fungal genera were positively or negatively correlated with active ingredient accumulation. These results showed that rhizosphere microorganisms could play an important role in component accumulation and might lay a foundation for future research on endangered materials.
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Affiliation(s)
- Pingping Song
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Junling Liu
- Key Laboratory of Quality Research and Evaluation of Traditional Chinese Medicine, State Medical Products Administration, Hefei, China
| | - Peng Huang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China,Anhui Province Key Laboratory of Research and Development of Chinese Medicine, Hefei, China
| | - Zhili Han
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China,Anhui Province Key Laboratory of Research and Development of Chinese Medicine, Hefei, China
| | - Dianlei Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China,Anhui Province Key Laboratory of Research and Development of Chinese Medicine, Hefei, China
| | - Nianxia Sun
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China,Anhui Province Key Laboratory of Research and Development of Chinese Medicine, Hefei, China
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Gómez-Acata ES, Teutli C, Falcón LI, García-Maldonado JQ, Prieto-Davó A, Yanez-Montalvo A, Cadena S, Chiappa-Carrara X, Herrera-Silveira JA. Sediment microbial community structure associated to different ecological types of mangroves in Celestún, a coastal lagoon in the Yucatan Peninsula, Mexico. PeerJ 2023; 11:e14587. [PMID: 36785710 PMCID: PMC9921989 DOI: 10.7717/peerj.14587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/28/2022] [Indexed: 02/11/2023] Open
Abstract
Mangroves are unique coastal ecosystems, which have many important ecological functions, as they are a reservoir of many marine species well adapted to saline conditions and are fundamental as sites of carbon storage. Although the microbial contribution to nutrient cycling in these ecosystems has been well recognized, there is a lack of information regarding the microbial composition and structure of different ecological types of mangrove forests. In this study, we characterized the microbial community (Bacteria and Archaea) in sediments associated with five ecological types of mangrove forests in a coastal lagoon dominated by Avicennia germinans and Rhizophora mangle, through 16S rRNA-V4 gene sequencing. Overall, Proteobacteria (51%), Chloroflexi (12%), Gemmatimonadetes (5%) and Planctomycetes (6%) were the most abundant bacterial phyla, while Thaumarchaeota (30%), Bathyarchaeota (21%) and Nanoarchaeaeota (18%) were the dominant archaeal phyla. The microbial composition associated with basin mangroves dominated by Avicennia germinans was significantly different from the other ecological types, which becomes relevant for restoration strategies.
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Affiliation(s)
| | - Claudia Teutli
- Escuela Nacional de Estudios Superiores, Mérida, Yucatán, México,Laboratorio Nacional de Resiliencia Costera (LANRESC), Sisal, Yucatán, México
| | | | - José Q. García-Maldonado
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán, México
| | | | | | - Santiago Cadena
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán, México
| | - Xavier Chiappa-Carrara
- Escuela Nacional de Estudios Superiores, Mérida, Yucatán, México,Unidad Multidisciplinaria de Docencia e Investigación, Unidad Sisal, Universidad Nacional Autónoma de México, Sisal, Yucatán, México
| | - Jorge A. Herrera-Silveira
- Laboratorio Nacional de Resiliencia Costera (LANRESC), Sisal, Yucatán, México,Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán, México
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Lv S, Zhang Y, Zhang Z, Meng S, Pu Y, Liu X, Liu L, Ma Y, Liu W, Jiang L. Diversity of the fecal microbiota in Chinese ponies. Front Vet Sci 2023; 10:1102186. [PMID: 36777669 PMCID: PMC9909481 DOI: 10.3389/fvets.2023.1102186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/09/2023] [Indexed: 01/27/2023] Open
Abstract
Introduction The gut microbiomes of equine are plentiful and intricate, which plays an important part in the growth. However, there is a relative lack of information on the microbial diversity in the pony's gut. Methods In this article, 118 fecal samples from DeBa pony, NiQi pony and GuZh horse were studied by 16S rRNA amplicon sequencing. Results Diversity analysis was used to determine the difference of gut microbiota composition among different breeds. Alpha diversity analysis showed that the gut microbiota of NiQi ponies were abundant and various. Beta diversity analysis showed that the microorganisms constitution of DeBa ponies was more similar to that of NiQi ponies. LDA Effect Size (LEfSe) analysis result that the microorganism biomarkers for NiQi pony at the genus level were Phascolarctobacterium, Paludibacter, and Fibrobacter; the bacterial biomarker for DeBa pony was Streptococcus and Prevotella; and the bacterial biomarkers for GuZh horses was Treponema, Treponema Mogibacterium, Adlercreutzia, and Blautia. The correlation analysis between genera with >1% abundance and horse height found that Streptococcus (P < 0.01), Treponema (P < 0.01), Coprococcus (P < 0.01), Prevotella (P < 0.01), Phascolarctobacterium (P < 0.01), and Mogibacterium (P < 0.01) were significantly associated with horses' height. The functional prediction results indicated that DeBa pony have a microbiota functional more similar to NiQi pony. Discussion For the first time, our results announce the species composition and structure of the gut microbiota in Chinese ponies. At the same time, our results can provide theoretical reference for further understanding the healthy breeding, feeding management and disease prevention of horses.
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Affiliation(s)
- Shipeng Lv
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China,Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Yanli Zhang
- Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Zhengkai Zhang
- Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Sihan Meng
- Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Yabin Pu
- Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Xuexue Liu
- Centre d'Anthropobiologie et de Génomique de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Lingling Liu
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Yuehui Ma
- Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Wujun Liu
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China,*Correspondence: Wujun Liu ✉
| | - Lin Jiang
- Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China,Lin Jiang ✉
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Yang L, Yang Q, Lin L, Luan T, Tam NFY. Characterization of benthic biofilms in mangrove sediments and their variation in response to nutrients and contaminants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159391. [PMID: 36240915 DOI: 10.1016/j.scitotenv.2022.159391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/30/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Diatom-dominated biofilms and associated extracellular polymeric substances (EPS) may adapt to the stress of long-term exposure to nutrients and anthropogenic contaminants. However, such interactions in contaminated mangrove sediments have rarely been reported. Based on the in situ characterization of biofilm components and environmental factors, the present study aimed to explore the key factors involved in shaping sediment biofilms through correlational and multivariate analyses. The pennate diatom Navicula is the core taxon that plays a crucial role in balancing the abundance of Nitzschia and Cyclotella, and is the main producer of bound-polysaccharides. The taxa composition shifts in a high N/P matrix, with the populations of pennate diatoms increasing but that of centric diatoms decreasing. High nutrient concentrations yield more number of diatoms and elevated levels of EPS. Bacteria are the main consumers of EPS and tend to be more symbiotic with Nitzschia than the other two diatom taxa. Some bound-polysaccharides dominated by arabinose and glucose units are transformed into the colloidal fraction, whereas other conservative ones serve as structural materials in concert with the bound-proteins. The planktonic phase of Cyclotella breaks down the structural EPS secreted by pennate diatoms in a process that directly affects the dynamic renewal of benthic biofilms. Most heavy metals as well as bisphenol A inhibit the abundance of bacteria and diatoms but enhance most EPS fractions except bound-polysaccharides. The response of structural EPS to specific contaminants varies, exhibiting increases in Co and Ni levels but decreases in nonylphenol and methylparaben levels. The present study improves our understanding of the microbial carbon loop of benthic biofilms in mangrove ecosystems under stress by nutrients and mixed contaminants.
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Affiliation(s)
- Lihua Yang
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qian Yang
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510600, China
| | - Li Lin
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Tiangang Luan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Nora F Y Tam
- School of Science and Technology, Hong Kong Metropolitan University, Hong Kong, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong, China.
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Cuzziol Boccioni AP, García-Effron G, Peltzer PM, Lajmanovich RC. Effect of glyphosate and ciprofloxacin exposure on enteric bacteria of tadpoles. Rev Argent Microbiol 2023:S0325-7541(22)00107-9. [PMID: 36682905 DOI: 10.1016/j.ram.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/30/2022] [Accepted: 08/20/2022] [Indexed: 01/21/2023] Open
Abstract
The high load of agrochemicals and antibiotics present in agricultural aquatic environments represents a risk for wildlife. Since enteric bacteria, which play a key role in the physiological functioning of their hosts, are sensitive to a wide variety of pollutants, their study allows to evaluate the health of organisms. This study aimed to evaluate the effects of commercial formulations of a glyphosate-based herbicide (GBH) and the antibiotic ciprofloxacin (CIP), individually and in mixture, on the bacterial diversity of the intestinal content of common toad (Rhinella arenarum) tadpoles. The diversity of cultivable fast-growing bacteria with low nutritional requirements was evaluated using classic microbiological tests and matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry identification. Bacterial diversity varied among treatments. Taxa diversity increased in the GBH-treated group but decreased in the CIP-treated group. Remarkably, Yersinia spp. and Proteus spp. were only found in the GBH-treated group. The prevalence of Klebsiella spp. and Pseudomonas spp. decreased in the intestinal microbiota of the GBH-CIP-treated group. To our knowledge, this is the first report on the alteration of cultivable enteric bacteria of autochthonous tadpoles due to two pollutants of emerging concern. Our results demonstrate that R. arenarum tadpoles can be used as non-conventional model organisms for environmental pollution monitoring. Our preliminary findings would contribute to understanding how the presence of GBH and CIP in freshwaters may represent a threat to wildlife and human health by causing enteric dysbiosis of part of the bacterial community.
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Affiliation(s)
- Ana P Cuzziol Boccioni
- Laboratorio de Ecotoxicología, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas Técnicas (CONICET), Buenos Aires, Argentina
| | - Guillermo García-Effron
- Laboratorio de Micología y Diagnóstico Molecular, Cátedra de Parasitología y Micología, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas Técnicas (CONICET), Buenos Aires, Argentina.
| | - Paola M Peltzer
- Laboratorio de Ecotoxicología, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas Técnicas (CONICET), Buenos Aires, Argentina
| | - Rafael C Lajmanovich
- Laboratorio de Ecotoxicología, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas Técnicas (CONICET), Buenos Aires, Argentina
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36
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Raiyani NM, Singh SP. Microbial community and predictive functionalities associated with the marine sediment of Coastal Gujarat. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:43245-43266. [PMID: 36650368 DOI: 10.1007/s11356-023-25196-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023]
Abstract
Marine sediments are complex ecosystems where structures and functions constantly change due to natural and anthropogenic influences. In this investigation, a comprehensive and comparative analysis of the bacterial communities and their functional potential of the pristine and polluted marine sediments were carried out using MiSeq. The phylum Proteobacteria was dominant in all study sites. Other phyla were Actinobacteria, Bacteroidetes, Planctomycetes, Acidobacteria, Chloroflexi, Nitrospirae, Cyanobacteria, Verrucomicrobia, Tenericutes, and Chlorobi. Interestingly, about 50% of genera belong to the unclassified categories. The key genera were identified as Acinetobacter, Bacillus, Pseudomona, Idiomarina, Thalassospira, and Marinobacter, Halomonas, Planctomyces, Psychrobacter, and Vogesella. PICRUSt analysis revealed that major functions are associated with the metabolism category. Additionally, metabolism related to amino acids, carbohydrates, energy generation, xenobiotics degradation, nitrogen, sulfate, and methane were prominent. Similarly, the predicted metabolisms by COG and KEGG were observed in the microbial communities of the marine sediments. To date, a comprehensive description of the microbial life with metabolic potential in these study sites has not been investigated. This study therefore significantly adds to our understanding of the microbiome and its functional attributes of marine sediments.
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Affiliation(s)
- Nirali M Raiyani
- UGC-CAS Department of Biosciences, Saurashtra University, Rajkot, 360 005, Gujarat, India
| | - Satya P Singh
- UGC-CAS Department of Biosciences, Saurashtra University, Rajkot, 360 005, Gujarat, India.
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37
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Zhang YL, Guo XJ, Huang X, Guo RJ, Lu XH, Li SD, Zhang H. The Co-Association of Enterobacteriaceae and Pseudomonas with Specific Resistant Cucumber against Fusarium Wilt Disease. BIOLOGY 2023; 12:biology12020143. [PMID: 36829422 PMCID: PMC9952826 DOI: 10.3390/biology12020143] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/10/2023] [Indexed: 01/18/2023]
Abstract
The root microbiota contributes to the plant's defense against stresses and pathogens. However, the co-association pattern of functional bacteria that improves plant resistance has not been interpreted clearly. Using Illumina high-throughput sequencing technology, the root bacterial community profiles of six cucumber cultivars with different resistance in response to the causative agent of cucumber Fusarium wilt (CFW), Fusarium oxysporum f. sp. cucumerinum (Foc), were analyzed. The principal coordinate analysis indicated that the interactions of the cultivars and pathogens drove the cucumber root bacterial communities (p = 0.001). The resistance-specific differential genera across the cultivars were identified, including Massilia in the resistant cultivars, unclassified Enterobacteriaceae in resistant CL11 and JY409, Pseudomonas in JY409, Cronobacter in moderately resistant ZN106, and unclassified Rhizobiaceae and Streptomyces in susceptible ZN6. The predominant root bacterium Massilia accounted for the relative abundance of up to 28.08-61.55%, but dramatically declined to 9.36% in Foc-inoculated susceptible ZN6. Pseudomonas ASV103 and ASV48 of Pseudomonadaceae and Cronobacter ASV162 of Enterobacteriaceae were consistently differential across the cultivars at the phylum, genus, and ASV levels. Using the culture-based method, antagonistic strains of Enterobacteriaceae with a high proportion of 51% were isolated. Furthermore, the bacterial complexes of Pantoea dispersa E318 + Pseudomonas koreensis Ps213 and Cronobacter spp. C1 + C7 reduced the disease index of CFW by 77.2% and 60.0% in the pot experiment, respectively. This study reveals the co-association of specific root bacteria with host plants and reveals insight into the suppressing mechanism of resistant cultivars against CFW disease by regulating the root microbiota.
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Affiliation(s)
- Yu-Lu Zhang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiao-Jing Guo
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xin Huang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
| | - Rong-Jun Guo
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence:
| | - Xiao-Hong Lu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shi-Dong Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hao Zhang
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
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Qu SS, Zhang Y, Ren JN, Yang SZ, Li X, Fan G, Pan SY. Effect of different ways of ingesting orange essential oil on blood immune index and intestinal microflora in mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:380-388. [PMID: 35894931 DOI: 10.1002/jsfa.12152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 05/04/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Studies have found that the addition of plant essential oils to feed had a positive effect on intestinal microflora and immunity in mice. However, the effect of different ways of ingestion of orange essential oil on mice has seldom been reported. In the present study, we investigated the effects of ingestion of orange essential oil by gavage, sniffing and feeding on intestinal microflora and immunity in mice. RESULTS The results obtained showed that a low concentration of essential oil feeding significantly increased the spleen index of mice (P < 0.05). The effect of different ways of ingestion on the thymus index, immunoglobulin G and immunoglobulin M of mice was not significant (P > 0.05). High and medium concentrations of essential oil feeding increased the level of interleukin-2 in mice (P < 0.05). H+ K+ -ATPase activity was significantly increased in mice fed with gavage and different concentrations of essential oil feed compared to the control group (P < 0.05). The analysis of the results of the microflora in the cecum and colon of mice indicated that the medium concentration of essential oil feeding group and the sniffing group significantly changed the structure of the flora and increased the diversity of the intestinal microflora. All three essential oil ingestion methods increased the abundance of Bacteroidetes and Lactobacillus in the intestine of mice. CONCLUSION Compared with gavage and feeding, sniffing had a significant effect on immunoglobulins in mice. All the three ingestion methods could affect the intestinal microflora of mice and increase the abundance of Lactobacillus. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Sha-Sha Qu
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yan Zhang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jing-Nan Ren
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Shu-Zhen Yang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiao Li
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Gang Fan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Si-Yi Pan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
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Protective Effects of Clinacanthus nutans (Burm.f.) Lindau Aqueous Extract on HBV Mouse Model by Modulating Gut Microbiota and Liver Metabolomics. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2023; 2023:5625222. [PMID: 36636608 PMCID: PMC9831714 DOI: 10.1155/2023/5625222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/04/2022] [Accepted: 12/13/2022] [Indexed: 01/14/2023]
Abstract
Background Clinacanthus nutans (Burm.f.) Lindau (C. nutans) has been used in the therapy of hepatitis B (HB) and is effective; however, the mechanism of action has not been elucidated. Objective To investigate the protective effects of C. nutans aqueous extract on the hepatitis B virus (HBV) mouse model based on correlation analysis between gut microbiota and liver metabolomics. Materials and Methods We firstly constructed the animal model by high-pressure injection of pcDNA3.1(+)/HBV plasmid into the tail vein and treated it with C. nutans. The biomarkers and inflammatory cytokines of HB were detected by enzyme-linked immunosorbent assay and quantitative PCR; the Illumina-MiSeq platform was used for investigating gut microbiota; the LC-MS/MS method was utilized on screening liver tissue metabolites; multiomics joint analysis was performed using the R program. Results Compared with the modeling group, C. nutans significantly decreased the expression levels of HBsAg, IL-1β, TNF-α(P < 0.05) in the serum, and cccDNA (P < 0.05) in the liver tissues of mice. C. nutans dramatically reduced the ratio of Firmicutes and Bacteroidetes (P < 0.05) and significantly declined the proportion of Lactobacillaceae and Lactobacillus(P < 0.05), dramatically increasing the relative abundance of Bacteroidales_S24-7_group, Rikenellaceae, and Alistipes(P < 0.05); LC-MS/MS analysis results showed that C. nutans dramatically upregulate hippuric acid, L-histidine, trehalose, D-threitol, and stachyose and downregulate uridine 5'-diphosphate, cholic acid, trimethylamine N-oxide, CDP-ethanolamine, and phosphorylcholine (P < 0.05). The correlation analysis revealed that C. nutans affects the related metabolite levels of hippuric acid and cholic acid through the modulation of crucial bacteria (Alistipes) (P < 0.01), exerting specific anti-inflammatory effects. Conclusion These results suggest that C. nutans exerts protective effects in HBV model mice, showing the therapeutic potential for anti-HBV infection.
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Octaviana S, Primahana G, Mozef T, Borges LGA, Pieper DH, Wink J. Diversity of Myxobacteria Isolated from Indonesian Mangroves and Their Potential for New Antimicrobial Sources. Curr Microbiol 2023; 80:46. [PMID: 36538090 PMCID: PMC9768008 DOI: 10.1007/s00284-022-03066-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 09/28/2022] [Indexed: 12/24/2022]
Abstract
Mangroves are unique intertidal ecosystems that provide ecological niches to different microbes, which play various roles in nutrient recycling and diverse environmental activities. The association between myxobacteria and mangroves are hitherto poorly understood. The aim of our study was to evaluate the myxobacterial community composition as well as isolate myxobacteria and to characterize the antimicrobial activity of myxobacteria isolates from Indonesian mangroves. Twenty-five cultivable myxobacteria were affiliated in six genera: Myxococcus, Corallococcus, Archangium, Chondromyces, Racemicystis and Nannocystis of the order Myxococcales based on partial 16S rRNA gene sequences. Thirteen crude extracts showed moderate activities against at least one of human pathogenic microorganisms. The crude extract of Racemicystis sp. strain 503MSO indicated a novel compound, which has not been reported in the database yet and the identification of this compound needs further study. The myxobacterial communities of three different sampling sites were analyzed using primers adapted for the myxobacteria group identification. The results showed that myxobacterial communities are more diverse than assumed. Therefore, our study has highlighted the importance of the mangrove habitat as promising harbor of myxobacteria as well as novel antimicrobial compounds with activity against pathogenic microorganisms.
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Affiliation(s)
- Senlie Octaviana
- Helmholtz Center for Infection Research, Microbial Strain Collection, Braunschweig, Germany ,Research Center for Applied Microbiology BRIN, Cibinong, Jawa Barat Indonesia
| | - Gian Primahana
- Microbial Drug, Helmholtz Center for Infection Research, Braunschweig, Germany ,Research Center for Pharmaceutical Ingredients and Traditional Medicines BRIN, Cibinong, Jawa Barat Indonesia
| | - Tjandrawati Mozef
- Research Center for Pharmaceutical Ingredients and Traditional Medicines BRIN, Cibinong, Jawa Barat Indonesia
| | - Luiz G. A. Borges
- Microbial Interactions and Processes, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Dietmar H. Pieper
- Microbial Interactions and Processes, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Joachim Wink
- Helmholtz Center for Infection Research, Microbial Strain Collection, Braunschweig, Germany
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Zhang X, Chen Z, Yu Y, Liu Z, Mo L, Sun Z, Lin Z, Wang J. Response of bacterial diversity and community structure to metals in mangrove sediments from South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157969. [PMID: 35985575 DOI: 10.1016/j.scitotenv.2022.157969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/25/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
Human activities have given rise to metal contamination in the constituents of mangrove ecosystems, posing a critical threat to sediment microorganisms; hence, it is of great importance to comprehend the effects of metals on the microbial communities in mangrove sediments. This study was the first to explore the response of the bacterial diversity and community structure to nine metals (As, Co, Cr, Cu, Mn, Ni, Pb, V and Zn) and organic matter fractions (including total organic carbon (TOC), total nitrogen (TN), and total sulfur (TS)) in mangrove wetlands from Zhanjiang, China, using 16S rRNA high-throughput sequencing technology and Spearman correlation analysis. The results showed that these nine metals were scattered differently in different mangrove sediments, and the metals and organic matter fractions jointly affected the bacterial communities in the sediments. Several metals displayed significant positive correlations with the abundances of the phylum Bacteroidetes and the genera Actibacter and Sphingobacterium but significant negative correlations with the abundances of two genera Holophaga and Caldithrix. Furthermore, the abundances of the phylum Actinobacteria and many bacterial genera showed significant positive or negative responses to the levels of the three organic matter fractions. Interestingly, the levels of a number of bacterial genera that exhibited increased abundance with high levels of metals and TS might be reduced with high TOC and TN, and vice versa: the levels of genera that exhibited decreased abundance with high levels of metals and TS might be increased with high TOC and TN. Overall, many bacterial groups showed different response patterns to each metal or organic matter fraction, and these metals together with organic matter fractions influenced the bacterial diversity and community structure in mangrove sediments.
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Affiliation(s)
- Xiaoyong Zhang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zihui Chen
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Youkai Yu
- Institute for Innovation and Entrepreneurship, Loughborough University, London E20 3BS, UK
| | - Zhiying Liu
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Li Mo
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zuwang Sun
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zhongmei Lin
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Jun Wang
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
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Polyphenol-Rich Liupao Tea Extract Prevents High-Fat Diet-Induced MAFLD by Modulating the Gut Microbiota. Nutrients 2022; 14:nu14224930. [PMID: 36432617 PMCID: PMC9697786 DOI: 10.3390/nu14224930] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022] Open
Abstract
The modulation of gut microbiota dysbiosis might regulate the progression of metabolic-associated fatty liver disease (MAFLD). Here, we found that polyphenol-rich Liupao tea extract (PLE) prevents high-fat diet (HFD)-induced MAFLD in ApoE-/- male mice accompanied by protection of the intestinal barrier and downregulation of lipopolysaccharide (LPS)-related Toll-like receptor 4 (TLR4)-myeloid differentiation primary response 88 (MyD88) signaling in the liver. Fecal microbiome transplantation (FMT) from PLE-and-HFD-treated mice delayed MAFLD development significantly compared with FMT from HFD-treated mice. In this case, 16S rRNA gene sequencing revealed that Rikenellaceae and Odoribacter were significantly enriched and that Helicobacter was significantly decreased in not only the HFD+PLE group but also the HFD+PLE-FMT group. Furthermore, the level of 3-sulfodeoxycholic acid was significantly decreased in the HFD+PLE-FMT group compared with the HFD-FMT group. In conclusion, our data demonstrate that PLE could modulate the MAFLD phenotype in mice and that this effect is partly mediated through modulation of the gut microbiota.
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Chen YC, Lin HY, Chien Y, Tung YH, Ni YH, Gau SSF. Altered gut microbiota correlates with behavioral problems but not gastrointestinal symptoms in individuals with autism. Brain Behav Immun 2022; 106:161-178. [PMID: 36058421 DOI: 10.1016/j.bbi.2022.08.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/09/2022] [Accepted: 08/28/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Despite inconsistent results across studies, emerging evidence suggests that the microbial micro-environment may be associated with autism spectrum disorder (ASD). Geographical and cultural factors highly impact microbial profiles, and there is a shortage of data from East Asian populations. This study aimed to comprehensively characterize microbial profiles in an East Asian sample and explore whether gut microbiota contributes to clinical symptoms, emotional/behavioral problems, and GI symptoms in ASD. METHODS We assessed 82 boys and young men with ASD and 31 typically developing controls (TDC), aged 6-25 years. We analyzed the stool sample of all participants with 16S V3-V4 rRNA sequencing and correlated its profile with GI symptoms, autistic symptoms, and emotional/behavioral problems. RESULTS Autistic individuals, compared to TDC, had worse GI symptoms. There were no group differences in alpha diversity of species richness estimates (Shannon-wiener and Simpson diversity indices). Participants with ASD had an increased relative abundance of Fusobacterium, Ruminococcus torques group (at the genus level), and Bacteroides plebeius DSM 17135 (at the species level), while a decreased relative abundance of Ruminococcaceae UCG 013, Ervsipelotrichaceae UCG 003, Parasutterella, Clostridium sensu stricto 1, Turicibacter (at the genus level), and Clostridium spiroforme DSM 1552 and Intestinimonas butyriciproducens (at the species level). Altered taxonomic diversity in ASD significantly correlated with autistic symptoms, thought problems, delinquent behaviors, self dysregulation, and somatic complaints. We did not find an association between gut symptoms and gut microbial dysbiosis. CONCLUSIONS Our findings suggest that altered microbiota are associated with behavioral phenotypes but not GI symptoms in ASD. The function of the identified microbial profiles mainly involves the immune pathway, supporting the hypothesis of a complex relationship between altered microbiome, immune dysregulation, and ASD that may advance the discovery of molecular biomarkers for ASD.
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Affiliation(s)
- Yu-Chieh Chen
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hsiang-Yuan Lin
- Azrieli Adult Neurodevelopmental Centre, Centre for Addiction and Mental Health, Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Yiling Chien
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Yu-Hung Tung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Hsuan Ni
- Department of Pediatrics, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Susan Shur-Fen Gau
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Chai X, Wang X, Pi Y, Wu T, Zhang X, Xu X, Han Z, Wang Y. Nitrate transporter MdNRT2.4 interacts with rhizosphere bacteria to enhance nitrate uptake in apple rootstocks. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:6490-6504. [PMID: 35792505 DOI: 10.1093/jxb/erac301] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Plants have developed complex mechanisms to adapt to changing nitrate (NO3-) concentrations and can recruit microbes to boost nitrogen absorption. However, little is known about the relationship between functional genes and the rhizosphere microbiome in NO3- uptake of apple rootstocks. Here, we found that variation in Malus domestica NO3- transporter (MdNRT2.4) expression contributes to nitrate uptake divergence between two apple rootstocks. Overexpression of MdNRT2.4 in apple seedlings significantly improved tolerance to low nitrogen via increasing net NO3- influx at the root surface. However, inhibiting the root plasma membrane H+-ATPase activity abolished NO3- uptake and led to NO3- release, suggesting that MdNRT2.4 encodes an H+-coupled nitrate transporter. Surprisingly, the nitrogen concentration of MdNRT2.4-overexpressing apple seedlings in unsterilized nitrogen-poor soil was higher than that in sterilized nitrogen-poor soil. Using 16S ribosomal RNA gene profiling to characterize the rhizosphere microbiota, we found that MdNRT2.4-overexpressing apple seedlings recruited more bacterial taxa with nitrogen metabolic functions, especially Rhizobiaceae. We isolated a bacterial isolate ARR11 from the apple rhizosphere soil and identified it as Rhizobium. Inoculation with ARR11 improved apple seedling growth in nitrogen-poor soils, compared with uninoculated seedlings. Together, our results highlight the interaction of host plant genes with the rhizosphere microbiota for host plant nutrient uptake.
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Affiliation(s)
- Xiaofen Chai
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Xiaona Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Ying Pi
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Ting Wu
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Xinzhong Zhang
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Xuefeng Xu
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
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Li X, Romanyà J, Li N, Xiang Y, Yang J, Han X. Biochar fertilization effects on soil bacterial community and soil phosphorus forms depends on the application rate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 843:157022. [PMID: 35772528 DOI: 10.1016/j.scitotenv.2022.157022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/29/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Biochar plays a key role in soil phosphorus (P) forms and distribution by affecting soil biochemical characteristics with relevant effects on the microbial community. In this study, we aimed to study the role of biochar in the variation of microbial community and P forms, and the relationships between soil properties, microbial community, and P forms. Here, we conducted a five-year field experiment NPK minerally fertilized with different application rates of biochar; control (B0, 0 kg ha-1 yr-1), low rate (B1500, 1500 kg ha-1 yr-1), medium rate (B3000, 3000 kg ha-1 yr-1), high rate (B6000, 6000 kg ha-1 yr-1). Our study showed that the highest increases in bacterial diversity and abundances coincided with increases in P forms typically retained in bacterial cells (β-glucosidase, adenosine monophosphate-AMP, choline phosphate, and glucose-6 phosphate) and occurred at medium application rates. At low application rates, N2-fixing and P solubilizing and mineralizing bacteria (Sphingomonas, Haliangium, and Bradyrhizobium) increased. P forms retained in bacterial cells decreased at the highest application rates while the most stable forms such as DNA and inositol hexaphosphate (IHP), steadily increased. Stereoisomers of IHP derived from soil microbes (scyllo-IHP and D-chiro-IHP) accounted for the total IHP increases at high application rates. pH and available P and K and total P were highest at high biochar application rates whereas the proportion of organic P was reduced. The most relevant genus in such soils was Gemmatimonas, a polyphosphate accumulating and pyrogenic material degrading bacterium. Therefore, it appears that applying biochar at higher rates reduced the abundance of plant growth promoting bacteria while enhancing the abundance of P accumulating and pyrogenic degrading types.
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Affiliation(s)
- Xue Li
- Monitoring & Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China; Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, Barcelona, Spain; INSA-UB, Nutrition and Food Safety Research Institute, University of Barcelona, Barcelona, Catalonia, Spain
| | - Joan Romanyà
- Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, Barcelona, Spain; INSA-UB, Nutrition and Food Safety Research Institute, University of Barcelona, Barcelona, Catalonia, Spain
| | - Na Li
- Monitoring & Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China.
| | - Yansen Xiang
- Monitoring & Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China
| | - Jinfeng Yang
- Monitoring & Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaori Han
- Monitoring & Experimental Station of Corn Nutrition and Fertilization in Northeast Region, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China; Biochar Engineering Technology Research Center of Liaoning Province, Shenyang 110866, China.
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Ren Z, Fan H, Gu S, Liu H, Wu Z, Wang H, Bao W, Wu S. Expression Analysis and the Roles of the Sec1 Gene in Regulating the Composition of Mouse Gut Microbiota. Genes (Basel) 2022; 13:genes13101858. [PMID: 36292744 PMCID: PMC9601920 DOI: 10.3390/genes13101858] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
The Sec1 gene encodes galactose 2-L-fucosyltransferase, whereas expression during development of the Sec1 gene mouse and its effect on the composition of the gut microbiota have rarely been reported. In this study, we examined Sec1 gene expression during mouse development, constructed Sec1 knockout mice, and sequenced their gut microbial composition. It was found that Sec1 was expressed at different stages of mouse development. Sec1 knockout mice have significantly higher intraperitoneal fat accumulation and body weight than wild-type mice. Analysis of gut microbial composition in Sec1 knockout mice revealed that at the phylum level, Bacteroidetes accounted for 68.8%and 68.3% of gut microbial composition in the Sec1-/- and Sec1+/+ groups, respectively, and Firmicutes accounted for 27.1% and 19.7%, respectively; while Firmicutes/Bacteroidetes were significantly higher in Sec1-/- mice than in Sec1+/+ mice (39.4% vs. 28.8%). In verucomicrobia, it was significantly higher in Sec1-/- mice than in Sec1+/+ group mice. At the family level, the dominant bacteria Prevotellaceae, Akkermansiaceae, Bacteroidaceae, and Lacilltobacaceae were found to be significantly reduced in the gut of Sec1-/- mice among Sec1+/+ gut microbes, while Lachnospiraceae, Ruminococcaceae, Rikenellaceae, Helicobacteraceae, and Tannerellaceae were significantly increased. Indicator prediction also revealed the dominant bacteria Akkermansiaceae and Lactobacillaceae in Sec1+/+ gut microorganisms, while the dominant bacteria Rikenellaceae, Marinifilaceae, ClostridialesvadinBB60aceae, Erysipelotrichaceae, Saccharimonadaceae, Clostridiaceae1, and Christensenellaceae in Sec1-/- group. This study revealed that the Sec1 gene was expressed in different tissues at different time periods in mice, and Sec1 knockout mice had significant weight gain, significant abdominal fat accumulation, and significant changes in gut microbial flora abundance and metabolic function, providing a theoretical basis and data support for the study of Sec1 gene function and effects on gut microbiota-related diseases.
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Affiliation(s)
- Zhanshi Ren
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Hairui Fan
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Shanshen Gu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Haoyu Liu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Zhengchang Wu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Haifei Wang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Wenbin Bao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Shenglong Wu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
- Correspondence:
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Yang YQ, Deng SF, Yang YQ, Ying ZY. Comparative analysis of the endophytic bacteria inhabiting the phyllosphere of aquatic fern Azolla species by high-throughput sequencing. BMC Microbiol 2022; 22:246. [PMID: 36221067 PMCID: PMC9552495 DOI: 10.1186/s12866-022-02639-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 09/13/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Azolla is a small floating fern living in symbiosis with nitrogen-fixing cyanobacteria and provides a variety of important ecosystem benefits. Previous studies have presented that Azolla harbors diverse bacteria that may play a key role in host fitness and productivity. However, the characteristics of endophytic bacteria inhabiting the phyllosphere of different species of Azolla have not yet been fully understood. RESULTS In this study, the 16S ribosomal DNA (rDNA) V5-V7 region of bacteria was determined by Illumina high-throughput sequencing platform to study the diversity and richness of endophytic bacterial communities in the phyllosphere of five Azolla species collected from different countries. A total of 1150 operational taxonomic units (OTUs) were detected for the endophytic bacteria community. According to the α diversity indices, the diversity of bacteria was ordered as Azolla imbricata > A. pinnata > A. filiculoides > A. mexicana > A. caroliniana. The PCoA results displayed that the bacterial communities of A. mexicana and A. caroliniana shared the highest similarity, followed by the similarity between A. pinnata and A. imbricata, and they were significantly distinct from the community of A. filiculoides. The dominant bacteria of Azolla mainly belonged to the phylum of Proteobacteria, followed by Actinobacteria, Chlorobillobacteria, and Firmicutes. In detail, the relative abundance of Proteobacteria in A. imbricata was 52.23%, whereas it was more than 80.00% in the other four species of Azolla. Notably, Herbaspirillum (45.91%, 44.08%) and Methylophilus (29.97%, 37.96%) were the main genera inhabiting A. mexicana and A. caroliniana respectively. Ferrovibrio (18.54%) and Rhizobium (16.68%) were the dominant genera inhabiting A. filiculoides. The group of unidentified genera (41.63%, 44.92%) consisted most of the bacteria in A. imbricata and A. pinnata respectively. Further analysis suggested that the significant different bacteria identified in LDA Effect Size analysis existed Azolla species-specific patterns. CONCLUSIONS In summary, all results suggested that the diversity and composition of the endophytic bacterial communities were different in Azolla species.
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Affiliation(s)
- Yan-Qiu Yang
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China. .,National Azolla Germplasm Resource Center, Fuzhou, China.
| | - Su-Fang Deng
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China.,National Azolla Germplasm Resource Center, Fuzhou, China
| | - You-Quan Yang
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China.,National Azolla Germplasm Resource Center, Fuzhou, China
| | - Zhao-Yang Ying
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China. .,National Azolla Germplasm Resource Center, Fuzhou, China.
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Yang Z, Feng Y, Zhang S, Hu Y, Tang Y, Gu H, Gu Z, Xv Y, Cai Y, Zhang H. Effects of rice-prawn (Macrobrachium nipponense) co-culture on the microbial community of soil. Appl Microbiol Biotechnol 2022; 106:7361-7372. [PMID: 36195705 DOI: 10.1007/s00253-022-12164-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/30/2022]
Abstract
In the Lixiahe region of China, co-culture has been rapidly promoted in flooded paddy fields owing to its ecological and economic benefits. Rice-prawn co-culture can reduce the damage of crab and shrimp to rice growth and paddy field and substantially change the soil microbial community and soil fertility. In this study, we compared changes in the soil microbial community and soil fertility in waterlogged paddies under conventional rice culture (CR), rice-prawn (Macrobrachium nipponense) co-culture (RP), and pond culture (PC). The microbial abundance in RP was significantly higher than that in CR. RP soil microbial diversity was significantly higher than PC soil microbial diversity. The dominant bacteria in RP soil were Proteobacteria, Chloroflexi, and Bacteroidetes. Compared with those in CR, total organic matter (TOM) and total nitrogen in RP were relatively stable, available potassium and available phosphorus (AP) decreased, and other indicators increased significantly. Soil fertility significantly benefited from co-culture, with total organic carbon (TOC) increasing. Interactive relationship analysis showed that TOM, TOC, AP, and NH4+-N were the main factors affecting the microbial community. Co-occurrence network analyses showed that network modularity increased with co-culture, indicating that a unique soil microbial community formed under co-culture, improving the adaptability and tolerance to co-culture. Thus, RP is a suitable culture method for this commercially important species. The results of this study can inform the practical operation of fertilizer use and sustainable development of rice-prawn aquaculture systems. KEY POINTS: • Microbial abundance and diversity increased under rice-prawn co-culture. • Co-culture significantly improved soil fertility, with an increase in TOC. • Rice-prawn co-culture is an ecologically suitable culture method for prawns.
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Affiliation(s)
- Zhijing Yang
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Yaming Feng
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Shuanglin Zhang
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Yuqi Hu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, 315211, China.,School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Yueyao Tang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, 315211, China.,School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Hailong Gu
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Zhengyan Gu
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Ye Xv
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Yingchun Cai
- Taizhou Institute of Agricultural Sciences, Jiangsu Academy of Agricultural Sciences, Taizhou, 225300, China
| | - Hao Zhang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, 315211, China. .,School of Marine Sciences, Ningbo University, Ningbo, 315211, China.
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High fat diet-induced hyperlipidemia and tissue steatosis in rabbits through modulating ileal microbiota. Appl Microbiol Biotechnol 2022; 106:7187-7207. [PMID: 36173452 DOI: 10.1007/s00253-022-12203-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 11/02/2022]
Abstract
High-fat diet (HFD) and overnutrition are important starting factors that may alter intestinal microbiota, lipid metabolism, and systemic inflammation. However, there were few studies on how intestinal microbiota contributes to tissue steatosis and hyperlipidemia. Here, we investigated the effect of lipid metabolism disorder-induced inflammation via toll-like receptor 2 (TLR-2), toll-like receptor 4 (TLR-4), and nuclear factor-κB (NF-κB) pathways at the intestinal level in response to HFD. Twenty 80-day-old male New Zealand White rabbits were randomly divided into the normal diet group (NDG) and the high-fat diet group (HDG) for 80 days. Growth performance, blood biochemical parameters, lipid metabolism, inflammation, degree of tissue steatosis, and intestinal microbial composition were measured. HFD increased the relative abundance of Christensenellaceae_R_7_group, Marvinbryantia, Akkermansia etc., with a reduced relative abundance of Enterorhabdus and Lactobacillus. Moreover, HFD caused steatosis in the liver and abdominal fat and abnormal expression of some genes related to lipid metabolism and tight junction proteins. The TLR-2, TLR-4, NF-κB, TNF-α, and IL-6 were confirmed by overexpression with downregulation of IL-10. Serum biochemical indices (TG, TCHO, LDL-C, and HDL-C) were also increased, indicating evidence for the development of the hyperlipidemia model. Correlation analysis showed that this microbial dysbiosis was correlated with lipid metabolism and inflammation, which were associated with the intestinal tract's barrier function and hyperlipidemia. These results provide an insight into the relationship between HFD, the intestinal microbiota, intestinal barrier, tissue inflammation, lipid metabolism, and hyperlipidemia. KEY POINTS: • High-fat diet leads to ileal microbiota disorders • Ileal microbiota mediates local and systemic lipid metabolism disorders and inflammation • There is a specific link between ileal microbiota, histopathology, and hyperlipidemia.
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Li YN, Kang NL, Jiang JJ, Zhu YY, Liu YR, Zeng DW, Wang F. Gut microbiota of hepatitis B virus-infected patients in the immune-tolerant and immune-active phases and their implications in metabolite changes. World J Gastroenterol 2022; 28:5188-5202. [PMID: 36188719 PMCID: PMC9516678 DOI: 10.3748/wjg.v28.i35.5188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 07/26/2022] [Accepted: 08/22/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The microbes and metabolomics of microbiota dysbiosis in the gut in the different phases of hepatitis B virus (HBV) infection are not fully understood.
AIM To investigate the specific gut microbiota and metabolites of the immune-tolerant (IT) and immune-active (IA) phases of chronic hepatitis B (CHB).
METHODS Clinical fecal samples from healthy individuals and patients in the IT and IA phases of HBV infection were collected. Next, non-target metabolomics, bioinformatics, and 16S rDNA sequencing analyses were performed.
RESULTS A total of 293 different metabolites in 14 phyla, 22 classes, 29 orders, 51 families, and 190 genera were identified. The four phyla of Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteria were the most abundant, accounting for 99.72%, 99.79%, and 99.55% in the healthy controls, IT-phase patients, and IA-phase patients, respectively. We further identified 16 genera with different richness in the IT phase and IA phase of HBV infection. Of the 134 named metabolites, 57 were upregulated and 77 were downregulated. A total of 101 different metabolic functions were predicted in this study, with 6 metabolic pathways having the highest enrichments, namely carbohydrate metabolism (14.85%), amino acid metabolism (12.87%), lipid metabolism (11.88%), metabolism of cofactors and vitamins (11.88%), xenobiotic biodegradation (9.9%), and metabolism of terpenoids and polyketides (7.92%).
CONCLUSION These findings provide observational evidence of compositional alterations of the gut microbiome and some related metabolites in patients with IT-phase or IA-phase HBV infection. Further studies should investigate whether microbiota modulation can facilitate the progression of CHB and the cause-effect relationship between the gut microbiota and CHB.
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Affiliation(s)
- Ya-Nan Li
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
| | - Na-Ling Kang
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
| | - Jia-Ji Jiang
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
| | - Yue-Yong Zhu
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
| | - Yu-Rui Liu
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
| | - Da-Wu Zeng
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
| | - Fei Wang
- Department of Pharmacy, Fujian Geriatric Hospital, Fuzhou 350001, Fujian Province, China
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