1
|
Liu M, Xu R, Cui X, Hou D, Zhao P, Cheng Y, Qi Y, Duan G, Fan G, Lin A, Tan X, Xiao Y. Effects of remediation agents on rice and soil in toxic metal(loid)s contaminated paddy fields: A global meta-analysis. Sci Total Environ 2024; 925:171656. [PMID: 38490416 DOI: 10.1016/j.scitotenv.2024.171656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/06/2024] [Accepted: 03/09/2024] [Indexed: 03/17/2024]
Abstract
Toxic metal(loid)s contamination of paddy soil is a nonnegligible issue and threatens food safety considering that it is transmitted via the soil-plant system. Applying remediation agents could effectively inhibit the soil available toxic metal(loid)s and reduce their accumulation in rice. To comprehensively quantify how remediation agents impact the accumulation of Cd/Pb/As in rice, rice growth and yield, the accumulation of available Cd/Pb/As in paddy soil, and soil characteristics, 50 peer-reviewed publications were selected for meta-analysis. Overall, the application of remediation agents exhibited significant positive effects on rice plant length (ES = 0.05, CI = 0.01-0.08), yield (ES = 0.20, CI = 0.13-0.27), peroxidase (ES = 0.56, CI = 0.18-0.31), photosynthetic rate (ES = 0.47, CI = 0.34-0.61), and respiration rate (ES = 0.68, CI = 0.47-0.88). Among the different types of remediation agents, biochar was the most effective in controlling the accumulation of Cd/Pb/As in all portions of rice, and was also superior in inhibiting the accumulation of Pb in rice grains (ES = -0.59, 95 % CI = -1.04-0.13). This study offers an essential contribution for the remediation strategies of toxic metal(loid)s contaminated paddy fields.
Collapse
Affiliation(s)
- Meng Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Ruiqing Xu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Xuedan Cui
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Daibing Hou
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Pengjie Zhao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Yanzhao Cheng
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Yujie Qi
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Guodong Fan
- Henan ENERGY Storage Technology Co., Ltd., People's Republic of China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.
| | - Yong Xiao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.
| |
Collapse
|
2
|
Tan X, Qi F, Liu Q, Qie H, Duan G, Lin A, Liu M, Xiao Y. Is Cr(III) re-oxidation occurring in Cr-contaminated soils after remediation: Meta-analysis and machine learning prediction. J Hazard Mater 2024; 465:133342. [PMID: 38150755 DOI: 10.1016/j.jhazmat.2023.133342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/18/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
Whether Cr(III) in Cr(III)-containing sites formed after Cr(VI) reduction and stabilization remediation are re-oxidized and pose toxicity risks again has been a growing concern. In this study, 1030 data were collected to perform a meta-analysis to clarify the effects of various factors (oxidant type, soil and Cr(III) solid compound properties, aging conditions, and testing methods) on Cr(III) oxidation. We observed that the soil properties of clay, pH ≥ 8, the lower CEC capacity, easily reducible Mn content, and Cr(III) content, and the higher Eh value and Fe content can promote the re-oxidation of Cr(III). Publication bias and sensitivity analyses confirmed the stability and reliability of the meta-analysis. Subsequently, we used five machine learning algorithms to construct and optimize the models. The prediction results of the RF model (RMSE <1.36, R2 >0.71) with good algorithm performance showed that after ten years of remediation, the extractable Cr(VI) concentration in the soil was 0.0087 mg/L, indicating a negligible secondary pollution risk of Cr(III) re-oxidation. This study provides theoretical support for subsequent risk management and control after Cr(VI) soil remediation and provides a solution for the quantitative prediction of Cr(III) re-oxidation.
Collapse
Affiliation(s)
- Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Fang Qi
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Qi Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Hantong Qie
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Meng Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.
| | - Yong Xiao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.
| |
Collapse
|
3
|
Yi X, Brandt KK, Xue S, Peng J, Wang Y, Li M, Deng Y, Duan G. Niche differentiation and biogeography of Bathyarchaeia in paddy soil ecosystems: a case study in eastern China. Environ Microbiome 2024; 19:13. [PMID: 38429752 PMCID: PMC10908009 DOI: 10.1186/s40793-024-00555-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/16/2024] [Indexed: 03/03/2024]
Abstract
Bathyarchaeia (formerly Bathyarchaeota) is a group of highly abundant archaeal communities that play important roles in global biogeochemical cycling. Bathyarchaeia is predominantly found in sediments and hot springs. However, their presence in arable soils is relatively limited. In this study, we aimed to investigate the spatial distributions and diversity of Bathyarchaeia in paddy soils across eastern China, which is a major rice production region. The relative abundance of Bathyarchaeia among total archaea ranged from 3 to 68% in paddy soils, and Bathy-6 was the dominant subgroup among the Bathyarchaeia (70-80% of all sequences). Bathyarchaeia showed higher migration ability and wider niche width based on the neutral and null model simulations. Bathy-6 was primarily assembled by deterministic processes. Soil pH and C/N ratio were identified as key factors influencing the Bathyarchaeia composition, whereas C/N ratio and mean annual temperature influenced the relative abundance of Bathyarchaeia. Network analysis showed that specific Bathyarchaeia taxa occupied keystone positions in the archaeal community and co-occurred with some methanogenic archaea, including Methanosarcina and Methanobacteria, and ammonia-oxidizing archaea belonging to Nitrososphaeria. This study provides important insights into the biogeography and niche differentiation of Bathyarchaeia particularly in paddy soil ecosystems.
Collapse
Affiliation(s)
- Xingyun Yi
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, 100085, Beijing, China
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Kristian Koefoed Brandt
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
- Sino-Danish Center (SDC), 101408, Beijing, China
| | - Shudan Xue
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, 100085, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jingjing Peng
- College of Resources and Environmental Sciences, China Agricultural University, 10093, Beijing, China
| | - Yifei Wang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, 100085, Beijing, China
| | - Meng Li
- Archaeal Biology Center, Institute for Advanced Study, Shenzhen University, 518060, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, 518060, Shenzhen, Guangdong, China
| | - Ye Deng
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, 100085, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, 100085, Beijing, China.
- University of Chinese Academy of Sciences, 100049, Beijing, China.
| |
Collapse
|
4
|
Zou L, Jiang O, Zhang S, Duan G, Gustave W, An X, Tang X. Effects of citric acid on arsenic transformation and microbial communities in different paddy soils. Environ Res 2024; 249:118421. [PMID: 38325790 DOI: 10.1016/j.envres.2024.118421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/11/2024] [Accepted: 02/02/2024] [Indexed: 02/09/2024]
Abstract
Root exudate is a major source of soil organic matter and can significantly affect arsenic (As) migration and transformation in paddy soils. Citric acid is the main component of rice root exudate, however, the impacts and rules of citric acid on As bioavailability and rhizobacteria in different soils remains unclear. This study investigated the effects of citric acid on As transformation and microbial community in ten different paddy soils by flooded soil culture experiments. The results showed that citric acid addition increased total As and arsenate (As(V)) in the soil porewater by up to 41-fold and 65-fold, respectively, after 2-h incubation. As(V) was the main As species in soil porewater within 10 days with the addition of citric acid. Non-specifically sorbed As of soils, total Fe and total As were the main environmental factors affecting the soil microbial communities. High-throughput sequencing analysis demonstrated that citric acid addition significantly altered the soil microbial community structure, shifting the Proteobacteria-related reducing bacteria to Firmicutes-related reducing bacteria in different paddy soils. The relative abundance of Firmicutes was promoted by 174-196%. Clostridium-related bacteria belonging to Firmicutes became the dominant genera, which is believed to regulate As release through the reductive dissolution of iron oxides or the direct reduction of As(V) to arsenite (As(III)). However, citric acid addition significantly decreased the relative abundance of Geobacter and Anaeromyxobacter, which are also typical active As(V)- and ferric-reducing bacteria. Real-time quantitative polymerase chain reaction (qPCR) also revealed that the addition of citric acid significantly decreased the relative abundances of Geobacter in the different soils by 8-28 times while the relative abundances of Clostridium increased by 2-5 times. These results provide significant insight on As transformation in different types of rice rhizospheric soils and guidance for the application of rice varieties with low citric acid exuding to restrict As accumulation.
Collapse
Affiliation(s)
- Lina Zou
- Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China; MOE Key Lab of Environmental Remediation and Ecosystem Health, and Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Ouyuan Jiang
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Shu Zhang
- CSCEC 8th Division Environmental Technology Co., Ltd, Shanghai 200131, China.
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Williamson Gustave
- School of Chemistry, Environmental & Life Sciences, University of the Bahamas, New Providence, Nassau, Bahamas.
| | - Xia An
- Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China.
| | - Xianjin Tang
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
5
|
Zhao J, Duan G, Zhu D, Li J, Zhu Y. Microbial-influenced pesticide removal co-occurs with antibiotic resistance gene variation in soil-earthworm-maize system. Environ Pollut 2024; 342:123010. [PMID: 38012967 DOI: 10.1016/j.envpol.2023.123010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/01/2023] [Accepted: 11/18/2023] [Indexed: 11/29/2023]
Abstract
Within human-influenced landscapes, pesticides cooccur with a variety of antibiotic stressors. However, the relationship between pesticides removal process and antibiotic resistance gene variation are not well understood. This study explored pesticide (topramezone, TPZ) and antibiotic (polymyxin E, PME) co-contamination using liquid chromatography-tandem mass spectrometry (LC-MS/MS), bacterial-16 S rRNA sequencing and high-throughput quantitative polymerase chain reaction (HT-qPCR) in a soil-earthworm-maize system. After incubating soil for 28 days with TPZ and PME (10 mg kg-1 dry weight), earthworm weight-gain, mortality rates, and maize plant weight-gain only differed slightly, but height-gain significantly decreased. PME significantly increased TPZ-removal in the soil. Accumulation of TPZ in earthworm's tissues may pose potential risks in the food chain. Combined pollution altered the microbial community structure and increased the abundance of functional microorganisms involved in aromatic compound degradation. Furthermore, maize rhizosphere can raise resistance genes, however earthworms can reduce resistance genes. Co-contamination increased absolute abundance of mobile genetic elements (MGEs) in bulk-soil samples, antibiotic resistance genes (ARGs) in skin samples and number of ARGs in bulk-soil samples, while decreased absolute abundance of transposase gene in bulk-soil samples and number of ARGs in rhizosphere-soil samples. Potential hosts harbouring ARGs may be associated with the antagonistic effect during resistance and detoxification of TPZ and PMB co-occurrence. These findings provide insights into the mechanism underlining pesticide removal regarding occurrence of ARGs in maize agroecosystem.
Collapse
Affiliation(s)
- Jun Zhao
- Laboratory for Chemical Environmental Risk Assessment, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Guilan Duan
- University of Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Dong Zhu
- University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
| | - Jianzhong Li
- Laboratory for Chemical Environmental Risk Assessment, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yongguan Zhu
- University of Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| |
Collapse
|
6
|
Lin X, Liu Z, Wang W, Duan G, Zhu Y. Effects of artificial sweetener acesulfame on soil-dwelling earthworms (Eisenia fetida) and its gut microbiota. Sci Total Environ 2024; 907:167641. [PMID: 37806587 DOI: 10.1016/j.scitotenv.2023.167641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/16/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Artificial sweeteners (AS) are the emerging contaminants with potential toxicity to living organisms. The effects of AS to soil typical invertebrates have not been revealed. In this study, the responses of earthworms (Eisenia fetida) and gut microbial communities to acesulfame-contaminated soils (0.1, 1 and 10 mg kg-1) were studied using transcriptomics, metabolomics and metagenomics analyses. The fresh weight of earthworms was significantly stimulated by acesulfame at concentrations of 1 mg kg-1. Sphingolipid metabolism, purine metabolism, cutin, suberine and wax biosynthesis pathways were significantly affected. At 10 mg kg-1 treatment, the amount and weight of cocoons were significantly increased and decreased, respectively, accompanied by the significant disorder of ECM-receptor interaction, and carbon fixation in photosynthetic organisms pathways. Lysosome pathway was significantly affected in all the treatments. Moreover, the acesulfame significantly increased the relative abundance of Bacteroidetes and Mucoromycota, and decreased Proteobacteria in the gut of earthworms. Our multi-level investigation indicated that AS at a relatively low concentration induced toxicity to earthworms and AS pollution has significant environmental risks for soil fauna.
Collapse
Affiliation(s)
- Xianglong Lin
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhelun Liu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiran Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology-, Beijing, Beijing 100083, China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongguan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
| |
Collapse
|
7
|
Xie L, Chen Q, Liu Y, Ma Q, Zhang J, Tang C, Duan G, Lin A, Zhang T, Li S. Enhanced remediation of Cr(VI)-contaminated soil by modified zero-valent iron with oxalic acid on biochar. Sci Total Environ 2023; 905:167399. [PMID: 37793443 DOI: 10.1016/j.scitotenv.2023.167399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/01/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
Hexavalent chromium (Cr(VI)) is carcinogenic and widely presented in soil. In this study, modified zero-valent iron (ZVI) with oxalic acid on biochar (OA-ZVI/BC) was prepared using wet ball milling method for the remediation of Cr(VI)-contaminated soil. Microscopic characterizations showed that ZVI were distributed on the biochar uniformly and confirmed the enhanced interface interaction between biochar and ZVI by wet ball milling. Electrochemical analysis indicated the strong electron transfer ability and enhanced corrosion behavior of OA-ZVI/BC. Moreover, inhibitory efficiencies of Cr(VI) removal with the addition of 1,10-phenanthroline suggested abundant Fe2+ generation in OA-ZVI/BC, which might facilitate the reduction of Cr(VI) to Cr(III). Theory calculation further demonstrated the ZVI modified by oxalic acid was more susceptible to solid-solid interfacial reactions with Cr(VI), and more electrons were transferred to Cr(VI). When applied to Cr(VI)-contaminated soil, OA-ZVI/BC could passivate 96.7 % total Cr(VI) and maintained for 90 days. The toxicity characteristic leaching procedure (TCLP) and simple based extraction test (SBET) were used to evaluate the leaching toxicity and bioaccessibility of Cr(VI), respectively. The TCLP-Cr(VI) decreased to 0.11 mg·L-1 after OA-ZVI/BC treatment, much lower than that of soils with ZVI/BC and OA-ZVI remediation (1.5 mg·L-1 and 4.1 mg·L-1). The bioaccessibility of Cr(VI) reduced by 93.5 % after 3-month remediation. Sequential extraction showed that Cr fractions in the soil after OA-ZVI/BC remediation was converted from acetic acid-extractable (HOAc-extractable) to more stable forms (e.g., residual and oxidizable forms). Benefiting from the synergies of oxalic acid, biochar and wet ball milling, OA-ZVI/BC exhibited an excellent performance on the remediation of Cr(VI)-contaminated soil, whose mechanisms involved adsorption, reduction (Fe0/Fe2+, Fe2+/Fe3+) and co-precipitation. This study herein develops a promising ZVI technology in the remediation of heavy metal-contaminated soil.
Collapse
Affiliation(s)
- Lihong Xie
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qingjun Chen
- China National Petroleum and Chemical Planning Institute, Beijing 100013, China
| | - Yiyang Liu
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qiyan Ma
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinlan Zhang
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chenliu Tang
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Aijun Lin
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Tingting Zhang
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shangyi Li
- Department of Environmental Science and Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| |
Collapse
|
8
|
Zhao J, Duan G, Zhu Y, Zhu D. Gut microbiota and transcriptome response of earthworms (Metaphire guillelmi) to polymyxin B exposure. J Environ Sci (China) 2023; 133:37-47. [PMID: 37451787 DOI: 10.1016/j.jes.2022.07.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 07/18/2023]
Abstract
Polymyxin B (PMB) has received widespread attention for its use as a last-line therapy against multidrug-resistant bacterial infection. However, the consequences of unintended PMB exposure on organisms in the surrounding environment remain inconclusive. Therefore, this study investigated the effects of soil PMB residue on the gut microbiota and transcriptome of earthworms (Metaphire guillelmi). The results indicated that the tested doses of PMB (0.01-100 mg/kg soil) did not significantly affect the richness and Shannon's diversity index of the earthworm gut microbiota, but PMB altered its community structure and taxonomic composition. Moreover, PMB significantly affected Lysobacter, Aeromonas, and Sphingomonas in the soil microbiota, whereas Pseudomonas was significantly impacted the earthworm gut microbiota. Furthermore, active bacteria responded more significantly to PMB than the total microbial community. Bacterial genera such as Acinetobacter and Bacillus were highly correlated with differential expression of some genes, including up-regulated genes associated with folate biosynthesis, sulphur metabolism, and the IL-17 signalling pathway, and downregulated genes involved in vitamin digestion and absorption, salivary secretion, other types of O-glycan biosynthesis, and the NOD-like receptor signalling pathway. These results suggest that adaptation to PMB stress by earthworms involves changes in energy metabolism, their immune and digestive systems, as well as glycan biosynthesis. The study findings help elucidate the relationship between earthworms and their microbiota, while providing a reference for understanding the environmental risks of PMB.
Collapse
Affiliation(s)
- Jun Zhao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongguan Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Dong Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
| |
Collapse
|
9
|
Yin Y, Zhao J, Wang P, You S, Zhou Y, Wong JWC, Deng H, Duan G, Zhu Y. Reductive soil disinfestation and Fe amendment improve soil microbial composition and Fritillaria production. Appl Microbiol Biotechnol 2023; 107:6703-6716. [PMID: 37676290 DOI: 10.1007/s00253-023-12766-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/04/2023] [Accepted: 08/26/2023] [Indexed: 09/08/2023]
Abstract
The continuous obstacles of cropping cause severe economic loss, which seriously threaten agricultural sustainable development. In addition, managing excess waste, such as potato peel and mineral waste residues, is a vital burden for industry and agriculture. Therefore, we explored the feasibility of reductive soil disinfestation (RSD) with potato peel and amendment with iron mineral waste residues for the production of Fritillaria thunbergii, which is vulnerable to continuous obstacles. In this study, the influences of iron mineral, RSD with different organic maters, as well as the combined effects of iron mineral and RSD on Fritillaria rhizosphere soil physicochemical properties, microbial communities, and Fritillaria production were investigated. The results revealed that the RSD treatments with potato peel significantly reduced the soil salinity and increased the soil pH, microbial activity, organic matter, and the contents of K and Ca. RSD with potato peel also significantly thrived of the beneficial microbes (Bacillus, Azotobacter, Microvirga, and Chaetomium), and down-regulated potential plant pathogens. RSD with potato peel significantly promoted F. thunbergii yield and quality. Moreover, the combined effects of RSD and iron mineral amendment further enhanced soil health, improved microbial community composition, and increased the yield and peimisine content of F. thunbergii by 24.2% and 49.3%, respectively. Overall, our results demonstrated that RSD with potato peel and amendment with iron mineral waste residues can efficiently improve soil fertility, modify the microbial community, and benefit for both the sustainable production of F. thunbergii and the management of waste. KEY POINTS: • RSD increases soil pH, organic matter, microbial activity, and mineral content • RSD with potato peel enriches beneficial microbes and decreases plant pathogens • PP + Fe treatment increases Fritillaria yield by 24.2% and peimisine content by 49.3.
Collapse
Affiliation(s)
- Yue Yin
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Zhao
- School of Geography, Nanjing Normal University, Nanjing, 210095, China
| | - Pan Wang
- Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Pan'an, 322300, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Yaoyu Zhou
- College of the Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Jonathan W C Wong
- Department of Biology, Sino-Forest Applied Research Centre for Pearl River Delta Environment, Hong Kong Baptist University, Hong Kong, China
| | - Huimin Deng
- Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Pan'an, 322300, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yongguan Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| |
Collapse
|
10
|
Yang G, Cao JM, Cui HL, Zhan XM, Duan G, Zhu YG. Artificial Sweetener Enhances the Spread of Antibiotic Resistance Genes During Anaerobic Digestion. Environ Sci Technol 2023; 57:10919-10928. [PMID: 37475130 DOI: 10.1021/acs.est.2c08673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Artificial sweeteners have been frequently detected in the feedstocks of anaerobic digestion. As these sweeteners can lead to the shift of anaerobic microbiota in the gut similar to that caused by antibiotics, we hypothesize that they may have an antibiotic-like impact on antibiotic resistance genes (ARGs) in anaerobic digestion. However, current understanding on this topic is scarce. This investigation aimed to examine the potential impact of acesulfame, a typical artificial sweetener, on ARGs in anaerobic digestion by using metagenomics sequencing and qPCR. It was found that acesulfame increased the number of detected ARG classes and the abundance of ARGs during anaerobic digestion. The abundance of typical mobile genetic elements (MGEs) and the number of potential hosts of ARGs also increased under acesulfame exposure, suggesting the enhanced potential of horizontal gene transfer of ARGs, which was further confirmed by the correlation analysis between absolute abundances of the targeted ARGs and MGEs. The increased horizontal dissemination of ARGs may be associated with the SOS response induced by the increased ROS production, and the increased cellular membrane permeability. These findings indicate that artificial sweeteners may accelerate ARG spread through digestate disposal, thus corresponding strategies should be considered to prevent potential risks in practice.
Collapse
Affiliation(s)
- Guang Yang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jin-Man Cao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Hui-Ling Cui
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xin-Min Zhan
- Civil Engineering, College of Engineering and Informatics, National University of Ireland, Galway H91 TK33, Ireland
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong-Guan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| |
Collapse
|
11
|
Duan G, Takemi T, Ngan K. Evaluation of pollutant exposure using virtual walkers and large-eddy simulation: Application to an idealised urban neighbourhood. Sci Total Environ 2023; 877:162640. [PMID: 36921850 DOI: 10.1016/j.scitotenv.2023.162640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/07/2023] [Accepted: 03/01/2023] [Indexed: 05/06/2023]
Abstract
Urban air quality studies have primarily focused on pollutant dispersion; however, spatial or temporal concentrations collected at discretely distributed grid points (or fixed receptors) do not reflect the actual pollutant exposure of pedestrians. Using large-eddy simulation (LES) with virtual walkers implemented, this study investigates pollutant exposure of walking agents (or moving receptors) in an urban turbulent boundary-layer flow developed over an aligned building array under the influence of different wind directions. The spatial variability of the exposure risks are found to be better captured by the moving receptors than the fixed receptors along the same agent walking tracks. We demonstrate that the actual exposure can differ significantly from results interpreted from data recorded by the fixed receptors (corresponding to Eulerian estimates) and show that large discrepancies occur in avenues near the source, wherein dispersion of the point release has not occurred on larger spatiotemporal scales. In most scenarios, optimal evacuation routes are shown to be ones that deviate as much as possible from the dominant wind direction; however, one needs to decide the priority of moving to further avenues first or immediately adjusting the walking direction. The results should serve as a useful baseline reference for environmental health impact assessment and evacuation route planning against hazardous releases of air pollutants in more complex urban environments.
Collapse
Affiliation(s)
- G Duan
- Navigation College, Dalian Maritime University, Dalian, PR China; State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology Dalian, PR China.
| | - T Takemi
- Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
| | - K Ngan
- Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
12
|
Tan X, Liu J, Liu M, Zhang Y, Liu Q, Duan G, Cui J, Lin A. Arsenic removal and stabilization behavior of schwertmannite@BC (Sch@BC) in contaminated dual media (water/soil): Via sulfate exchange and chemical complexation. Environ Pollut 2023; 325:121431. [PMID: 36914151 DOI: 10.1016/j.envpol.2023.121431] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Arsenic (As) is extremely harmful to the ecological environment and human health owing to its high toxicity. The composite that biochar (BC) modified by Schwertmannite (Sch), marked as Sch@BC, were prepared to remediate As-contaminated water and soil with a high efficiency. The characterization results showed that the Sch particles were successfully loaded on the BC, providing more active sites for As(V) adsorption. Compared with the pristine BC, the adsorption capacity of Sch@BC-1 was significantly improved (50.00 mg/g), of which the adsorption capacity kept stable over a wide pH range (pH = 2-8). The adsorption process conformed to pseudo-second-order kinetics and Langmuir isotherm model, which indicated that chemical adsorption was the dominant mechanism and the adsorption rate was controlled by intraparticle diffusion. Sch@BC could adsorb As(V) through electrostatic interaction and ion exchange, forming a FeAsO4 complex and removing As(V). The 5-week soil incubation experiment showed that 3% Sch@BC showed the optimal stabilization effect, while the proportion of stable crystalline Fe/Mn-bound fractionation (F4) increased. Moreover, the results of microbial community diversity showed that Sch@BC interacted with As-resistant dominant microorganisms such as Proteobacteria in soil, promoted their growth and reproduction, and improved the stability of As in soil. In summary, Sch@BC is an excellent agent with broad application prospects for remediating As-contaminated water and soil.
Collapse
Affiliation(s)
- Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Jiahao Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Meng Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Yinjie Zhang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Qi Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100029, PR China
| | - Jun Cui
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| |
Collapse
|
13
|
Zhao Z, Wu H, Jin T, Liu H, Men J, Cai G, Cernava T, Duan G, Jin D. Biodegradable mulch films significantly affected rhizosphere microbial communities and increased peanut yield. Sci Total Environ 2023; 871:162034. [PMID: 36754316 DOI: 10.1016/j.scitotenv.2023.162034] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Biodegradable mulch films are widely used to replace conventional plastic films in agricultural fields. However, their ecological effects on different microbial communities that naturally inhabit agricultural fields are scarcely explored. Herein, differences in bacterial communities recovered from biofilms, bulk soil, and rhizosphere soil were comparatively assessed for polyethylene film (PE) and biodegradable mulch film (BDM) application in peanut planted fields. The results showed that the plastic film type significantly influenced the bacterial community in different ecological niches of agricultural fields (P < 0.001). Specifically, BDMs significantly increased the diversity and abundance of bacteria in the rhizosphere soil. The bacterial communities in each ecological niche were distinguishable from each other; bacterial communities in the rhizosphere soil showed the most pronounced response among different treatments. Acidobacteria and Pseudomonas were significantly enriched in the rhizosphere soil when BDMs were used. BDMs also increased the rhizosphere soil bacterial network complexity and stability. The enrichment of beneficial bacteria in the rhizosphere soil under BDMs may also have implications for the observed increase in peanut yield. Deepening analyses indicated that Pseudoxanthomonas and Glutamicibacter are biomarkers in biofilms of PE and BDMs respectively. Our study provides new insights into the consequences of the application of different types of plastic films on microbial communities in different ecological niches of agricultural fields.
Collapse
Affiliation(s)
- Zhirui Zhao
- Hebei Province Key Laboratory of Sustained Utilization and Development of Water Recourse, School of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China
| | - Haimiao Wu
- Hebei Province Key Laboratory of Sustained Utilization and Development of Water Recourse, School of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Tuo Jin
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing 100125, China
| | - Huiying Liu
- Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
| | - Jianan Men
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guangxing Cai
- Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
| | - Tomislav Cernava
- Institute of Environmental Biotechnology, Graz University of Technology, Petersgasse 12, 8010 Graz, Austria
| | - Guilan Duan
- Key Laboratory of Environmental Biotechnology, 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
| | - Decai Jin
- Key Laboratory of Environmental Biotechnology, 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.
| |
Collapse
|
14
|
Wang P, Wang Z, Zhu M, Zhu C, Feng W, Duan G, Cernava T, Jin D. Di-n-butyl phthalate stress hampers compost multifunctionality by reducing microbial biomass, diversity and network complexity. Bioresour Technol 2023; 376:128889. [PMID: 36931450 DOI: 10.1016/j.biortech.2023.128889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Phthalates are common pollutants in agriculture. Here, the influence of di-n-butyl phthalate (DBP) on multifunctionality of composting was assessed. Results indicated that DBP stress (100 mg/kg) hampered multifunctionality from the thermophilic phase onwards and resulted in a 6.5 % reduction of all assessed functions. DBP stress also significantly reduced microbial biomass (P < 0.05), altered microbial composition (P < 0.05), and decreased network complexity (P < 0.01). Multifunctionality was found to be strongly correlated (P < 0.001) with microbial biomass, diversity, and network complexity. In addition, keystone taxa responsive to DBP were identified as Streptomyces, Thermoactinomyces, Mycothermus, and Lutispora. These taxa were significantly (P < 0.001) affected by DBP stress, and a correlation between them and multifunctionality was shown. This study contributes to a better understanding of the negative implications of phthalates during composting processes, which is of great significance to the development of new treatment strategies for agricultural waste.
Collapse
Affiliation(s)
- Ping Wang
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China; Zhoukou Key Laboratory of Environmental Pollution Control and Remediation, Zhoukou Normal University, Zhoukou 466001, China
| | - Zhen Wang
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China; Zhoukou Key Laboratory of Environmental Pollution Control and Remediation, Zhoukou Normal University, Zhoukou 466001, China
| | - Miaomiao Zhu
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China
| | - Chaosheng Zhu
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China; Zhoukou Key Laboratory of Environmental Pollution Control and Remediation, Zhoukou Normal University, Zhoukou 466001, China
| | - Wenli Feng
- School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China; Zhoukou Key Laboratory of Environmental Pollution Control and Remediation, Zhoukou Normal University, Zhoukou 466001, China
| | - Guilan Duan
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Environment and Resources, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tomislav Cernava
- Institute of Environmental Biotechnology, Graz University of Technology, Petersgasse 12, Graz 8010, Austria; School of Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton SO17 1 BJ, United Kingdom
| | - Decai Jin
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Environment and Resources, University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
15
|
Jiang O, Li L, Duan G, Gustave W, Zhai W, Zou L, An X, Tang X, Xu J. Root exudates increased arsenic mobility and altered microbial community in paddy soils. J Environ Sci (China) 2023; 127:410-420. [PMID: 36522072 DOI: 10.1016/j.jes.2022.05.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 06/17/2023]
Abstract
Root exudates are crucial for plants returning organic matter to soils, which is assumed to be a major source of carbon for the soil microbial community. This study investigated the influence of root exudates on the fate of arsenic (As) with a lab simulation experiment. Our findings suggested that root exudates had a dose effect on the soil physicochemical properties, As speciation transformation and the microbial community structure at different concentrations. The addition of root exudates increased the soil pH while decreased the soil redox potential (Eh). These changes in the soil pH and Eh increased As and ferrous (Fe(II)) concentrations in soil porewater. Results showed that 40 mg/L exudates addition significantly increased arsenite (As(III)) and arsenate (As(V)) by 541 and 10 times respectively within 30 days in soil porewater. The relative abundance of Fe(III)-reducing bacteria Geobacter and Anaeromyxobacter increased with the addition of root exudates, which enhanced microbial Fe reduction. Together these results suggest that investigating how root exudates affect the mobility and transformation of As in paddy soils is helpful to systematically understand the biogeochemical cycle of As in soil-rice system, which is of great significance for reducing the health risk of soil As contamination.
Collapse
Affiliation(s)
- Ouyuan Jiang
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Lvyao Li
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Guilan Duan
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Williamson Gustave
- School of Chemistry, Environmental & Life Sciences, University of The Bahamas, New Providence, Nassau, Bahamas
| | - Weiwei Zhai
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Lina Zou
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China; Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops Research, Flower Research and Development Centre, Zhejiang Academy of Agricultural Sciences, Hangzhou 311202, China.
| | - Xia An
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops Research, Flower Research and Development Centre, Zhejiang Academy of Agricultural Sciences, Hangzhou 311202, China
| | - Xianjin Tang
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
16
|
Cao J, Duan G, Lin A, Zhou Y, You S, Wong JWC, Yang G. Metagenomic insights into the inhibitory mechanisms of Cu on fermentative hydrogen production. Bioresour Technol 2023; 380:129080. [PMID: 37094620 DOI: 10.1016/j.biortech.2023.129080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
Cu is widely present in the feedstocks of dark fermentation, which can inhibit H2 production efficiency of the process. However, current understanding on the inhibitory mechanisms of Cu, especially the microbiological mechanism, is still lacking. This study investigated the inhibitory mechanisms of Cu2+ on fermentative hydrogen production by metagenomics sequencing. Results showed that the exposure to Cu2+ reduced the abundances of high-yielding hydrogen-producing genera (e.g. Clostridium sensu stricto), and remarkably down-regulated the genes involved in substrate membrane transport (e.g., gtsA, gtsB and gtsC), glycolysis (e.g. PK, ppgK and pgi-pmi), and hydrogen formation (e.g. pflA, fdoG, por and E1.12.7.2), leading to significant inhibition on the process performances. The H2 yield was reduced from 1.49 mol H2/mol-glucose to 0.59 and 0.05 mol H2/mol-glucose upon exposure to 500 and 1000 mg/L of Cu2+, respectively. High concentrations of Cu2+ also reduced the rate of H2 production and prolonged the H2-producing lag phase.
Collapse
Affiliation(s)
- Jinman Cao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G128QQ, UK
| | - Jonathan W C Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, China
| | - Guang Yang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| |
Collapse
|
17
|
Cui H, Zhu D, Ding L, Wang Y, Su J, Duan G, Zhu Y. Co-occurrence of genes for antibiotic resistance and arsenic biotransformation in paddy soils. J Environ Sci (China) 2023; 125:701-711. [PMID: 36375951 DOI: 10.1016/j.jes.2022.02.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 06/16/2023]
Abstract
Paddy soils are potential hotspots of combined contamination with arsenic (As) and antibiotics, which may induce co-selection of antibiotic resistance genes (ARGs) and As biotransformation genes (ABGs), resulting in dissemination of antimicrobial resistance and modification in As biogeochemical cycling. So far, little information is available for these co-selection processes and specific patterns between ABGs and ARGs in paddy soils. Here, the 16S rRNA amplicon sequencing and high-throughput quantitative PCR and network analysis were employed to investigate the dynamic response of ABGs and ARGs to As stress and manure application. The results showed that As stress increased the abundance of ARGs and mobile genetic elements (MGEs), resulting in dissemination risk of antimicrobial resistance. Manure amendment increased the abundance of ABGs, enhanced As mobilization and methylation in paddy soil, posing risk to food safety. The frequency of the co-occurrence between ABGs and ARGs, the host bacteria carrying both ARGs and ABGs were increased by As or manure treatment, and remarkably boosted in soils amended with both As and manure. Multidrug resistance genes were found to have the preference to be co-selected with ABGs, which was one of the dominant co-occurring ARGs in all treatments, and manure amendment increased the frequency of Macrolide-Lincosamide-Streptogramin B resistance (MLSB) to co-occur with ABGs. Bacillus and Clostridium of Firmicutes are the dominant host bacteria carrying both ABGs and ARGs in paddy soils. This study would extend our understanding on the co-selection between genes for antibiotics and metals, also unveil the hidden environmental effects of combined pollution.
Collapse
Affiliation(s)
- Huiling Cui
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Longjun Ding
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yifei Wang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianqiang Su
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yongguan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| |
Collapse
|
18
|
Tan X, Zhang Y, Liu M, Cao J, Duan G, Cui J, Lin A. Ultrasonic-assisted preparation of interlaced layered hydrotalcite (U-Fe/Al-LDH) for high-efficiency removal of Cr(VI): Enhancing adsorption-coupled reduction capacity and stability. Chemosphere 2022; 308:136472. [PMID: 36122742 DOI: 10.1016/j.chemosphere.2022.136472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Cr(VI) contamination in aquatic systems has been a challenge for environmental science researchers. To environmental-friendly, stable, and efficiently remove Cr (VI), a novel layered double hydroxide was prepared through the ultrasonic-assisted co-precipitation method. The ultrasonic-assisted step prevented the Fe2+ oxidation, improved the morphology and performance, and finally, the adsorption-coupled reduction capacity and stability were enhanced. By adding U-Fe/Al-LDH (1.0 g/L) for Cr(VI) (100 mg/L), the removal rate reached 82.24%. The removal data were well fitted by the pseudo-second-order kinetic and Langmuir isotherm model. Using U-Fe/Al-LDH can be performed over a wide pH range (2-10), with a theoretical maximum removal capacity of 118.65 mg/g. The Cr(VI) with high toxicity was adsorbed and reduced to low-toxicity Cr(III). In the final phase, stable Cr(III) complex precipitates were generated. After 30 days, the dynamic leaching amounts of total Cr in used U-Fe/Al-LDH-2 were 0.1052 mg/L. Combined with the results of the influence experiment of coexisting anions and oxidants and the SO42- release experiment, the stability of the removal effect and the safety of U-Fe/Al-LDH were proved. In conclusion, U-Fe/Al-LDH-2 is a promising remediation agent and a feasible Cr(VI) removal method for the practical remediation.
Collapse
Affiliation(s)
- Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Yinjie Zhang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Meng Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jinman Cao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100029, People's Republic of China
| | - Jun Cui
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| |
Collapse
|
19
|
Yang G, Xu C, Varjani S, Zhou Y, Wc Wong J, Duan G. Metagenomic insights into improving mechanisms of Fe 0 nanoparticles on volatile fatty acids production from potato peel waste anaerobic fermentation. Bioresour Technol 2022; 361:127703. [PMID: 35907599 DOI: 10.1016/j.biortech.2022.127703] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
The management of potato peel waste (PPW) has been a challenge faced by the potato industry. This investigation assessed the feasibility of PPW for volatile fatty acids (VFAs) production via anaerobic fermentation, and investigated the impact of Fe0 nanoparticles (Fe0 NPs) supplementation on the VFAs production. It is found that PPW is a potential feedstock for producing VFAs, achieving a yield of 480.4 mg COD/g-vS Meanwhile, the supplementation of Fe0 NPs significantly promoted the VFAs productivity and quality. The higher enrichment of VFAs-producing bacteria, including Clostridium, Proteiniphilum, Fonticella and Pygmaiobacter, contributed to the promotion of the VFAs yield. Furthermore, metagenomic analysis revealed that the encoding genes responsible for carbohydrate metabolism (especially starch), membrane transport, glycolysis and the formation of acetic and butyric acids were remarkably up-regulated,which could be the essential reason for the enhanced metabolic activity and VFAs productivity. This work provides a promising strategy for recycling PPW.
Collapse
Affiliation(s)
- Guang Yang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chonglin Xu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar-382 010, Gujarat, India
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jonathan Wc Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
20
|
Cao J, Xu C, Zhou R, Duan G, Lin A, Yang X, You S, Zhou Y, Yang G. Potato peel waste for fermentative biohydrogen production using different pretreated culture. Bioresour Technol 2022; 362:127866. [PMID: 36049714 DOI: 10.1016/j.biortech.2022.127866] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
How to manage potato peel waste sustainably has been an issue faced by the potato industry. This work explored the feasibility of potato peel waste for biohydrogen production via dark fermentation, and investigated the effects of various inoculum enrichment methods (acid, aeration, heat-shock and base) on the process efficiency. It was observed that the hydrogen production showed a great variation when using various inoculum enrichment methods, and the aeration enriched inoculum obtained the maximum hydrogen yield of 71.0 mL/g-VSadded and VS removal of 28.9 %. Different enriched cultures also exhibited huge variations in the bacterial community structure and metabolic pathway. The highest abundance of Clostridium sensu stricto fundamentally contributed to the highest process efficiency for the fermenter inoculated with aeration treated culture. This work puts forward a promising strategy for recycling potato peel waste, and fills a gap in the optimal inoculum preparation method for biohydrogen fermentation of potato peel waste.
Collapse
Affiliation(s)
- Jinman Cao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chonglin Xu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Rui Zhou
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiao Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow G12 8QQ, UK
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Guang Yang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| |
Collapse
|
21
|
Wang F, Sun R, Hu H, Duan G, Meng L, Qiao M. The overlap of soil and vegetable microbes drives the transfer of antibiotic resistance genes from manure-amended soil to vegetables. Sci Total Environ 2022; 828:154463. [PMID: 35276164 DOI: 10.1016/j.scitotenv.2022.154463] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/02/2022] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
Livestock manure, as a major source of antibiotic resistance genes (ARGs), could further transfer ARGs from soil to vegetables when it's used as fertilizer in field and then pose threat to human health. Meanwhile, manure inputs and vegetable planting also affect soil bacterial communities, but these effects on the transmission of ARGs from soil to vegetable is still lacking. Here, lettuce and endive were cultivated in manure-amended soils using pot experiment. The distribution of bacterial community, ARGs and intI1 gene were studied in manure-amended soil and vegetable roots and leaves at harvest. High-throughput sequencing analysis demonstrated that planting vegetables exerted significant effect on soil bacterial communities, which partly explained the decrease of certain ARGs and the intI1 gene in planted soil than in control soil. ARGs in vegetable and soil were interconnected. The bacterial community compositions among root endophyte, leaf endophyte, and phyllosphere were varied by Hierarchical clustering analysis. Higher abundance of shared bacterial taxa was found between root endophytes and soil microbes, which could lead to a relative higher detection frequency of ARGs in root endophyte. Proteobacteria, Actinobacteria, Bacteroidetes and Firmicutes were dominant in the plant endophyte and phyllosphere microbes and had intensive correlations with ARGs. Taken together, our findings provided valuable insights into the role of bacterial community structure in the dissemination of ARGs from manure-amended soil to vegetables.
Collapse
Affiliation(s)
- Fenghua Wang
- Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Experimental Teaching Demonstrating Center of Geographical Science, School of Geographical Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China; State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ruibo Sun
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Hangwei Hu
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville 3010, Australia
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Liang Meng
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China; Shanghai Wetland Ecosystem National Observation and Research Station in the Eco-friendly Integration Demonstration Zone of the Yangtze River Delta, Shanghai 201722, China
| | - Min Qiao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China.
| |
Collapse
|
22
|
Yin Y, Zhu D, Yang G, Su J, Duan G. Diverse antibiotic resistance genes and potential pathogens inhabit in the phyllosphere of fresh vegetables. Sci Total Environ 2022; 815:152851. [PMID: 34990692 DOI: 10.1016/j.scitotenv.2021.152851] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Fresh vegetables are considered as a reservoir of pathogenic bacteria and antibiotic resistance genes (ARGs), which are the emerging environmental contaminants, posing increasing concerned risk to human health. However, the prevalence of pathogens in phyllosphere of fresh vegetables, as well as the association of ARGs with pathogenic bacteria, have not been well elaborated. In this study, we explored the structure of microbial communities and ARGs through high-throughput quantitative PCR and 16S rRNA gene Illumina sequencing, and characterized the microorganisms resisting to antibiotics by pure culture. From phyllosphere of six different kinds of vegetables, 205 ARGs were detected and genes for multidrug resistance was the most abundant. The predominant potential pathogens were classified to Pseudomonas, Klebsiella, and Acinetobacter genera, which carried various ARGs such as multidrug and beta-lactam resistance genes presumedly. Among six kinds of vegetables, Lactuca sativa var. asparagina carried the highest abundance of potential pathogens and ARGs, while Allium sativum L harbored the lowest abundance of pathogens and ARGs. In addition, various culturable bacteria resisting to colistin or meropenem could be isolated from all vegetables, remarkably, all the isolates resistant to both antibiotics are potential pathogens. Our study highlighted the risks of pathogens and ARGs from raw vegetables to consumers, characterized their structure patterns among different vegetables, and analyzed the potential mechanisms regulating phyllosphere pathogens and resistome of fresh vegetables, which would be helpful for reducing the microbial risk from vegetable ingestion.
Collapse
Affiliation(s)
- Yue Yin
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guang Yang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jianqiang Su
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
23
|
Li L, Zhu D, Yi X, Su J, Duan G, Tang X, Zhu Y. Combined pollution of arsenic and Polymyxin B enhanced arsenic toxicity and enriched ARG abundance in soil and earthworm gut microbiotas. J Environ Sci (China) 2021; 109:171-180. [PMID: 34607666 DOI: 10.1016/j.jes.2021.04.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 05/21/2023]
Abstract
Polymyxin B (PMB) is considered as the last line of antibiotic defense available to humans. The environmental effects of the combined pollution with PMB and heavy metals and their interaction mechanisms are unclear. We explored the effects of the combined pollution with PMB and arsenic (As) on the microbial composition of the soil and in the earthworm gut, as well as the spread and transmission of antibiotic resistance genes (ARGs). The results showed that, compared with As alone, the combined addition of PMB and As could significantly increase the bioaccumulation factor and toxicity of As in earthworm tissues by 12.1% and 16.0%, respectively. PMB treatment could significantly increase the abundance of Actinobacteria in the earthworm gut (from 35.6% to 45.2%), and As stress could significantly increase the abundance of Proteobacteria (from 19.8% to 56.9%). PMB and As stress both could significantly increase the abundance of ARGs and mobile genetic elements (MGEs), which were positively correlated, indicating that ARGs might be horizontally transferred. The inactivation of antibiotics was the main resistance mechanism that microbes use to resist PMB and As stress. Network analysis showed that PMB and As might have antagonistic effects through competition with multi-drug resistant ARGs. The combined pollution by PMB and As significantly promoted the relative abundance of microbes carrying multi-drug resistant ARGs and MGEs, thereby increasing the risk of transmission of ARGs. This research advances the understanding of the interaction mechanism between antibiotics and heavy metals and provides new theoretical guidance for the environmental risk assessment and combined pollution management.
Collapse
Affiliation(s)
- Lyu Li
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingyun Yi
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianqiang Su
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xianjin Tang
- Institute of Soil and Water Resources and Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Yongguan Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| |
Collapse
|
24
|
Luo H, Du P, Shi J, Yang B, Liang T, Wang P, Chen J, Zhang Y, He Y, Jia X, Duan G, Li F. DGT methodology is more sensitive than conventional extraction strategies in assessing amendment-induced soil cadmium availability to rice. Sci Total Environ 2021; 760:143949. [PMID: 33340737 DOI: 10.1016/j.scitotenv.2020.143949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Using diffusive gradients in thin films (DGT) is a recently developed alternative method of rapidly evaluating the bioavailability of metals in soil. However, the method has found only limited application in systematic assessment of the bioavailability of cadmium (Cd) in red limestone paddy soils treated with different soil amendments. Of the four methods compared for estimating Cd content of rice grains from plants grown in such soils of central China treated with eleven different soil amendments in pot culture, Cd content of DGT-labile soil was significantly correlated to Cd concentrations in brown rice (R = 0.447, p < 0.01). The other three methods involved CaCl2, diethylenetriaminepentaacetic acid (DTPA), or NH4NO3. Some other properties of soil, such as pH, redox potential, content of dissolved organic matter, and cation exchange capacity were also determined. A simple algorithm developed to evaluate the sensitivity of the four methods also confirmed DGT as the most efficient method to predict the bioavailability of Cd in red limestone paddy soils.
Collapse
Affiliation(s)
- Huilong Luo
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Ping Du
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China.
| | - Jing Shi
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China; College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Bin Yang
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Tian Liang
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Panpan Wang
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Juan Chen
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Yunhui Zhang
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Ying He
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Xiuwen Jia
- Technical Center for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Fasheng Li
- College of Water Science, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| |
Collapse
|
25
|
Duan G, Cui H, Yang Y, Yi X, Zhu D, Zhu Y. [Interactions among soil biota and their applications in synergistic bioremediation of heavy-metal contaminated soils]. Sheng Wu Gong Cheng Xue Bao 2020; 36:455-470. [PMID: 32237540 DOI: 10.13345/j.cjb.190598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Soil is the material basis for human survival. However, in China, soils are wildly polluted by heavy metals, which poses serious health risks to humans. Bioremediation of heavy-metal contaminated soil is widely considered as a sustainable remediation strategy, but low remediation efficiency is still a scientific bottleneck of bioremediation. There are abundant microorganisms, plants and animals living in soils. Among these soil biota, there are complex interactions to form an intricate food web through material circulation and energy transfer. These interactions among soil biota affect the transportation and transformation of pollutants in soil, and consequently influence the bioremediation efficiency. The synergistic remediation by soil biota combines the advantages of diferent organisms to enhance the efficiency of bioremediation. In this paper, the interactions among soil biota and their influence on heavy-metal transportation and transformation, as well as bioremediation efficiency are reviewed. We also propose perspectives for future researches, including targeted regulating the structure of soil food web, improving the bioremediation efficiency of heavy-metal contaminated soil, and building a synergistic remediation technology with multi-organisms based on food web.
Collapse
Affiliation(s)
- Guilan Duan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huiling Cui
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuping Yang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingyun Yi
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Zhu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongguan Zhu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Fujian, China
| |
Collapse
|
26
|
Kong X, Jin D, Tai X, Yu H, Duan G, Yan X, Pan J, Song J, Deng Y. Bioremediation of dibutyl phthalate in a simulated agricultural ecosystem by Gordonia sp. strain QH-11 and the microbial ecological effects in soil. Sci Total Environ 2019; 667:691-700. [PMID: 30849609 DOI: 10.1016/j.scitotenv.2019.02.385] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/21/2019] [Accepted: 02/24/2019] [Indexed: 06/09/2023]
Abstract
Bioremediation of organic pollutants has been identified as an economically efficient and environmentally friendly method. Here, a pot experiment was conducted to evaluate the bioremediation efficiency of dibutyl phthalate (DBP) by Gordonia phthalatica sp. nov. QH-11 in agricultural soils, along with the effect of this exogenous organism on the native microbial community and ecosystem functions during the bioremediation process. The results showed that inoculation with strain QH-11 accelerated DBP degradation in the soil and decreased DBP accumulation in plants, thereby reducing the health risks associated with vegetables grown in those soils. High-throughput sequencing demonstrated that both DBP contamination and the bioremediation process significantly altered prokaryotic community composition, structure, and network interactions; however, these effects were greatly reduced after 30 d. Dibutyl phthalate affected the prokaryotic community by influencing soil properties rather than directly impacting on microorganisms. In addition, ecosystem functions, like the nitrogen cycle, were significantly altered. Contamination with DBP promoted nitrogen fixation and the denitrification processes while inhibiting nitrification. Bioremediation may mitigate some of the changes to nitrogen cycling, helping to maintain the balance of prokaryotic community function. According to this study, bioremediation through highly efficient degradation bacteria may be a safe and promising method for reducing PAEs contamination in soil-vegetable systems.
Collapse
Affiliation(s)
- Xiao Kong
- Key Laboratory of Environmental Biotechnology, 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
| | - Decai Jin
- Key Laboratory of Environmental Biotechnology, 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.
| | - Xin Tai
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China
| | - Hao Yu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China
| | - Guilan Duan
- Key Laboratory of Environmental Biotechnology, 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
| | - Xiulan Yan
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Jiangang Pan
- School of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Junhua Song
- Institute for the Control of Agrochemicals, China Ministry of Agriculture and Rural Affairs, Beijing 100026, China
| | - Ye Deng
- Key Laboratory of Environmental Biotechnology, 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
| |
Collapse
|
27
|
Guo A, Ding L, Tang Z, Zhao Z, Duan G. Microbial response to CaCO 3 application in an acid soil in southern China. J Environ Sci (China) 2019; 79:321-329. [PMID: 30784455 DOI: 10.1016/j.jes.2018.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
Calcium carbonate (CaCO3) application is widely used to ameliorate soil acidification. To counteract soil and bacterial community response to CaCO3 application in an acidic paddy soil in southern China, a field experiment was conducted with four different dosages of CaCO3 addition, 0, 2.25, 4.5 and 7.5 tons/ha, respectively. After one seasonal growth of rice, soil physicochemical properties, soil respiration and bacterial communities were investigated. Results showed that soil pH increased accordingly with increasing dose of CaCO3 addition, and 7.5 tons/ha addition increased soil pH to neutral condition. Moderate dose of CaCO3 application (4.5 tons/ha) significantly increased soil dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) content, enhanced soil respiration, while the excessive CaCO3 application (7.5 tons/ha) decreased these soil properties. High-throughput sequencing results illustrated that moderate dose of CaCO3 application increased the richness and alpha diversity of soil bacterial community. Compared with control, the relative abundance of Anaerolineaceae family belonging to Chloroflexi phylum increased by 38.7%, 35.4% and 24.5% under 2.25, 4.5 and 7.5 tons/ha treatments, respectively. Redundancy analysis (RDA) showed that soil pH was the most important factor shaping soil bacterial community. The results of this study suggest that proper dose of CaCO3 additions to acid paddy soil in southern China could have positive effects on soil properties and bacterial community.
Collapse
Affiliation(s)
- Anning Guo
- College of Land Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.; State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Longjun Ding
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhong Tang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhongqiu Zhao
- College of Land Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| |
Collapse
|
28
|
Kong X, Jin D, Wang X, Zhang F, Duan G, Liu H, Jia M, Deng Y. Dibutyl phthalate contamination remolded the fungal community in agro-environmental system. Chemosphere 2019; 215:189-198. [PMID: 30317089 DOI: 10.1016/j.chemosphere.2018.10.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/18/2018] [Accepted: 10/04/2018] [Indexed: 06/08/2023]
Abstract
Dibutyl phthalate (DBP) is a typical soil contaminant that is widely used as plasticizer in modern agricultural production. In this study, an experiment was conducted to evaluate fungal community succession in a soil-vegetable ecosystem under different DBP concentrations. By using high-throughput sequencing of the ribosomal internal transcribed spacer (ITS) region, it was shown that DBP contamination caused significant changes to the soil fungal community, in terms of both α and β diversities. The largest changes in fungal α and β diversities were detected under 50 mg/kg DBP concentration at the first day of addition. The bulk soils, rhizosphere soils and the phyllosphere harbored different fungal communities, while the abundance of saprotrophs and plant pathogens in the phyllosphere have been increased under DBP contamination. From correlation analysis and partial Mantel test, the change in fungal community α diversity was the result of multiple factors (DBP concentration, bacterial community and soil properties) while the β diversity of fungal community was mainly co-varied with the bacterial community after DBP contamination. Moreover, molecular ecological network analysis demonstrated that DBP contamination was detrimental to mutualistic relationships among fungal species and destabilized the network structure. Overall, the fungal communities in soils and around vegetables were largely remolded by DBP contamination that provides new insight into DBP contamination impacts on agricultural ecosystems.
Collapse
Affiliation(s)
- Xiao Kong
- Key Laboratory of Environmental Biotechnology, 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
| | - Decai Jin
- Key Laboratory of Environmental Biotechnology, 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.
| | - Xinxin Wang
- China Offshore Environmental Service Co. Ltd., Tianjin 300452, China
| | - Fengsong Zhang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Guilan Duan
- Key Laboratory of Environmental Biotechnology, 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
| | - Huijun Liu
- Beijing Key Laboratory of Detection and Control of Spoilage Organisms and Pesticide Residues in Agricultural Products, Beijing University of Agriculture, Beijing 102206, China
| | - Minghong Jia
- Beijing Key Laboratory of Detection and Control of Spoilage Organisms and Pesticide Residues in Agricultural Products, Beijing University of Agriculture, Beijing 102206, China
| | - Ye Deng
- Key Laboratory of Environmental Biotechnology, 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
| |
Collapse
|
29
|
Fu K, Duan G, Liu C, Niu J, Wang F. Changes in femoral trochlear morphology following surgical correction of recurrent patellar dislocation associated with trochlear dysplasia in children. Bone Joint J 2018; 100-B:811-821. [PMID: 29855234 DOI: 10.1302/0301-620x.100b6.bjj-2017-1295.r1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Aims The aim of this study was to investigate the changes in femoral trochlear morphology following surgical correction of recurrent patellar dislocation associated with trochlear dysplasia in children. Patients and Methods A total of 23 patients with a mean age of 9.6 years (7 to 11) were included All had bilateral recurrent patellar dislocation associated with femoral trochlear dysplasia. The knee with traumatic dislocation at the time of presentation or that had dislocated most frequently was treated with medial patellar retinacular plasty (Group S). The contralateral knee served as a control and was treated conservatively (Group C). All patients were treated between October 2008 and August 2013. The mean follow-up was 48.7 months (43 to 56). Axial CT scans were undertaken in all patients to assess the trochlear morphological characteristics on a particular axial image which was established at the point with the greatest epicondylar width based on measurements preoperatively and at the final follow-up. Results Preoperatively, there were no statistically significant differences between the trochlear morphology in the two groups (sulcus angle, p 0.852; trochlear groove depth, p 0.885; lateral trochlear inclination, p 0.676; lateral-to-medial facet ratio, p 0.468; lateral condylar height, p 0.899; medial condylar height, p 0.816). Many radiological parameters of trochlear morphology were significantly different between the two groups at the final follow-up, including well-known parameters, such as the mean sulcus angle (Group S, 146.27° (sd 7.18); Group C, 160.61° (sd 9.29); p < 0.001), the mean trochlear groove depth (Group S, 6.25 mm (sd 0.41); Group C, 3.48 mm (sd 0.65); p < 0.001) and the mean lateral trochlear inclination (Group S, 20.99° (sd 3.87); Group C, 12.18° (sd 1.85); p < 0.001). Lesser known parameters such as the ratio of the lateral to medial trochlear length (Group S, 1.46 (sd 0.19); Group C, 2.14 (sd 0.42); p < 0.001), which is a measurement of facet asymmetry, and the lateral and medial condylar height were also significantly different between the two groups (p < 0.001). Conclusion The femoral trochlear morphology can be improved by early (before epiphyseal closure) surgical correction in children with recurrent patellar dislocation associated with femoral trochlear dysplasia. Cite this article: Bone Joint J 2018;100-B:811–21.
Collapse
Affiliation(s)
- K. Fu
- Department of Orthopaedic Surgery, Hebei
Medical University Third Affiliated Hospital, Shijiazhuang, Hebei, China
| | - G. Duan
- Department of Orthopaedic Surgery, Hebei
Medical University Third Affiliated Hospital, Shijiazhuang, Hebei, China
| | - C. Liu
- Department of Orthopaedic Surgery, Hebei
Medical University Third Affiliated Hospital, Shijiazhuang, Hebei, China
| | - J. Niu
- Department of Orthopaedic Surgery, Hebei
Medical University Third Affiliated Hospital, Shijiazhuang, Hebei, China
| | - F. Wang
- Department of Orthopaedic Surgery, Hebei
Medical University Third Affiliated Hospital, Shijiazhuang, Hebei, China
| |
Collapse
|
30
|
Dai F, Xiang X, Duan G, Duan B, Xiao X, Chang H. Pathogenicity characteristics of Enterococcus faecium from diseased black bears. Iran J Vet Res 2018; 19:82-86. [PMID: 30046317 PMCID: PMC6056144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 10/25/2017] [Accepted: 12/23/2017] [Indexed: 06/08/2023]
Abstract
The death of several black bears at the black bear breeding base in Yunnan Pingbian Daweishan is a matter of concern. Multiple black bears exhibited decreased appetite or unusual waste, and some were soporific or suffered from vomiting and anhelation. In order to ascertain the cause of death, 16S rDNA gene sequencing and phylogenetic analysis was performed on bacteria isolated from tissue samples obtained from dead bears. The biochemical characteristics of the isolated bacteria were subsequently analyzed using different biochemical test systems. The bacteria can decompose glucose, but it cannot produce gas. The fermentation study of sucrose, lactose, trehalose, glycerol and mannitol yielded positive results; while it was unable to decompose urea or ODC (ornithine decarboxylase). Basic Local Alignment Search Tool (BLAST) analysis of a ~1500-bp DNA product amplified from the 16S rDNA of the bacterial isolate revealed that Enterococcus faecium from black bears is highly similar to other E. faecium isolates in the National Center for Biotechnology Information (NCBI) database, and the highest sequence similarity (99%) was with the reference strain. In addition, mice infected with the E. faecium isolate succumbed to severe damage to the lungs, liver, spleen, myocardium, and kidney tissues. In summary, the isolated E. faecium from dead black bears induced pathological changes in mice.
Collapse
Affiliation(s)
- F. Dai
- Department of Clinical Veterinary, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- These authors contributed equally to this work and should all be considered as first authors
| | - X. Xiang
- Department of Clinical Veterinary, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- These authors contributed equally to this work and should all be considered as first authors
| | - G. Duan
- Department of Clinical Veterinary, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- These authors contributed equally to this work and should all be considered as first authors
| | - B. Duan
- Animal Disease Prevention and Control Center of Yunnan Province, Kunming, Yunnan, 650201, China
| | - X. Xiao
- Department of Clinical Veterinary, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - H. Chang
- Department of Clinical Veterinary, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| |
Collapse
|
31
|
Duan G, Shao G, Tang Z, Chen H, Wang B, Tang Z, Yang Y, Liu Y, Zhao FJ. Genotypic and Environmental Variations in Grain Cadmium and Arsenic Concentrations Among a Panel of High Yielding Rice Cultivars. Rice (N Y) 2017; 10:9. [PMID: 28353179 PMCID: PMC5371165 DOI: 10.1186/s12284-017-0149-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/17/2017] [Indexed: 05/18/2023]
Abstract
BACKGROUND Rice is a major dietary source of cadmium (Cd) and arsenic (As) for populations consuming rice as the staple food. Excessive Cd and As accumulation in rice grain is of great concern worldwide, especially in South China where soil contamination with heavy metals and metalloids is widespread. It is important to reduce Cd and As accumulation in rice grain through selection and breeding of cultivars accumulating low levels of Cd or As. RESULTS To assess the genetic and environmental variations in the concentrations of Cd and As in rice grains, 471 locally adapted high-yielding rice cultivars were grown at three moderately contaminated sites in South China for two years. Cadmium and As concentrations in brown rice varied by 10 - 32 and 2.5 - 4 fold, respectively. Genotype (G), environment (E) and G x E interactions were highly significant factors explaining the variations. Brown rice Cd concentration was found to correlate positively with the heading date among different cultivars, whereas As concentration and heading date correlated negatively. There was a significant and negative correlation between grain Cd and As concentrations. CONCLUSIONS Eight and 6 rice cultivars were identified as stable low accumulators of Cd and As, respectively, based on the multiple site and season trials. These cultivars are likely to be compliant with the grain Cd or As limits of the Chinese Food Safety Standards when grown in moderately contaminated paddy soils in South China.
Collapse
Affiliation(s)
- Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Guosheng Shao
- Chinese National Rice Research Institute, Hangzhou, 310006, China
| | - Zhong Tang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hongping Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Boxun Wang
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Zhu Tang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuping Yang
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yuechuan Liu
- Youxian Agricultural Bureau of Hunan Province, Hunan, 412300, China
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| |
Collapse
|
32
|
Pearce SL, Clarke DF, East PD, Elfekih S, Gordon KHJ, Jermiin LS, McGaughran A, Oakeshott JG, Papanicolaou A, Perera OP, Rane RV, Richards S, Tay WT, Walsh TK, Anderson A, Anderson CJ, Asgari S, Board PG, Bretschneider A, Campbell PM, Chertemps T, Christeller JT, Coppin CW, Downes SJ, Duan G, Farnsworth CA, Good RT, Han LB, Han YC, Hatje K, Horne I, Huang YP, Hughes DST, Jacquin-Joly E, James W, Jhangiani S, Kollmar M, Kuwar SS, Li S, Liu NY, Maibeche MT, Miller JR, Montagne N, Perry T, Qu J, Song SV, Sutton GG, Vogel H, Walenz BP, Xu W, Zhang HJ, Zou Z, Batterham P, Edwards OR, Feyereisen R, Gibbs RA, Heckel DG, McGrath A, Robin C, Scherer SE, Worley KC, Wu YD. Erratum to: Genomic innovations, transcriptional plasticity and gene loss underlying the evolution and divergence of two highly polyphagous and invasive Helicoverpa pest species. BMC Biol 2017; 15:69. [PMID: 28810920 PMCID: PMC5557573 DOI: 10.1186/s12915-017-0413-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 08/07/2017] [Indexed: 11/10/2022] Open
Affiliation(s)
- S L Pearce
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - D F Clarke
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - P D East
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - S Elfekih
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - K H J Gordon
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.
| | - L S Jermiin
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - A McGaughran
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,Research School of Biology, Australian National University, Canberra, ACT, Australia
| | - J G Oakeshott
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.
| | - A Papanicolaou
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,Hawksbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - O P Perera
- Southern Insect Management Research Unit, USDA-ARS, Stoneville, MS, USA
| | - R V Rane
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - S Richards
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA.
| | - W T Tay
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - T K Walsh
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - A Anderson
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - C J Anderson
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,Biological and Environmental Sciences, University of Stirling, Stirling, UK
| | - S Asgari
- School of Biological Sciences, University of Queensland, Brisbane St Lucia, QLD, Australia
| | - P G Board
- John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia
| | | | - P M Campbell
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - T Chertemps
- Sorbonnes Universités, UPMC Université Paris 06, Institute of Ecology and Environmental Sciences of Paris, Paris, France.,National Institute for Agricultural Research (INRA), Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | | | - C W Coppin
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | | | - G Duan
- Research School of Biology, Australian National University, Canberra, ACT, Australia
| | - C A Farnsworth
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - R T Good
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - L B Han
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Y C Han
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - K Hatje
- Max Planck Institute for Biophysical Chemistry, Gottingen, Germany
| | - I Horne
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - Y P Huang
- Institute of Plant Physiology and Ecology, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - D S T Hughes
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - E Jacquin-Joly
- National Institute for Agricultural Research (INRA), Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - W James
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - S Jhangiani
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - M Kollmar
- Max Planck Institute for Biophysical Chemistry, Gottingen, Germany
| | - S S Kuwar
- Max Planck Institute of Chemical Ecology, Jena, Germany
| | - S Li
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - N-Y Liu
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming, 650224, China
| | - M T Maibeche
- Sorbonnes Universités, UPMC Université Paris 06, Institute of Ecology and Environmental Sciences of Paris, Paris, France.,National Institute for Agricultural Research (INRA), Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - J R Miller
- J. Craig Venter Institute, Rockville, MD, USA
| | - N Montagne
- Sorbonnes Universités, UPMC Université Paris 06, Institute of Ecology and Environmental Sciences of Paris, Paris, France
| | - T Perry
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - J Qu
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - S V Song
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - G G Sutton
- J. Craig Venter Institute, Rockville, MD, USA
| | - H Vogel
- Max Planck Institute of Chemical Ecology, Jena, Germany
| | - B P Walenz
- J. Craig Venter Institute, Rockville, MD, USA
| | - W Xu
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia
| | - H-J Zhang
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.,Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Z Zou
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - P Batterham
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | | | - R Feyereisen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej, Denmark
| | - R A Gibbs
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - D G Heckel
- Max Planck Institute of Chemical Ecology, Jena, Germany
| | - A McGrath
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - C Robin
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - S E Scherer
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - K C Worley
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Y D Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu, China
| |
Collapse
|
33
|
Pearce SL, Clarke DF, East PD, Elfekih S, Gordon KHJ, Jermiin LS, McGaughran A, Oakeshott JG, Papanicolaou A, Perera OP, Rane RV, Richards S, Tay WT, Walsh TK, Anderson A, Anderson CJ, Asgari S, Board PG, Bretschneider A, Campbell PM, Chertemps T, Christeller JT, Coppin CW, Downes SJ, Duan G, Farnsworth CA, Good RT, Han LB, Han YC, Hatje K, Horne I, Huang YP, Hughes DST, Jacquin-Joly E, James W, Jhangiani S, Kollmar M, Kuwar SS, Li S, Liu NY, Maibeche MT, Miller JR, Montagne N, Perry T, Qu J, Song SV, Sutton GG, Vogel H, Walenz BP, Xu W, Zhang HJ, Zou Z, Batterham P, Edwards OR, Feyereisen R, Gibbs RA, Heckel DG, McGrath A, Robin C, Scherer SE, Worley KC, Wu YD. Genomic innovations, transcriptional plasticity and gene loss underlying the evolution and divergence of two highly polyphagous and invasive Helicoverpa pest species. BMC Biol 2017; 15:63. [PMID: 28756777 PMCID: PMC5535293 DOI: 10.1186/s12915-017-0402-6] [Citation(s) in RCA: 178] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/04/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Helicoverpa armigera and Helicoverpa zea are major caterpillar pests of Old and New World agriculture, respectively. Both, particularly H. armigera, are extremely polyphagous, and H. armigera has developed resistance to many insecticides. Here we use comparative genomics, transcriptomics and resequencing to elucidate the genetic basis for their properties as pests. RESULTS We find that, prior to their divergence about 1.5 Mya, the H. armigera/H. zea lineage had accumulated up to more than 100 more members of specific detoxification and digestion gene families and more than 100 extra gustatory receptor genes, compared to other lepidopterans with narrower host ranges. The two genomes remain very similar in gene content and order, but H. armigera is more polymorphic overall, and H. zea has lost several detoxification genes, as well as about 50 gustatory receptor genes. It also lacks certain genes and alleles conferring insecticide resistance found in H. armigera. Non-synonymous sites in the expanded gene families above are rapidly diverging, both between paralogues and between orthologues in the two species. Whole genome transcriptomic analyses of H. armigera larvae show widely divergent responses to different host plants, including responses among many of the duplicated detoxification and digestion genes. CONCLUSIONS The extreme polyphagy of the two heliothines is associated with extensive amplification and neofunctionalisation of genes involved in host finding and use, coupled with versatile transcriptional responses on different hosts. H. armigera's invasion of the Americas in recent years means that hybridisation could generate populations that are both locally adapted and insecticide resistant.
Collapse
Affiliation(s)
- S L Pearce
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - D F Clarke
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - P D East
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - S Elfekih
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - K H J Gordon
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.
| | - L S Jermiin
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - A McGaughran
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- Research School of Biology, Australian National University, Canberra, ACT, Australia
| | - J G Oakeshott
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia.
| | - A Papanicolaou
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- Hawksbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - O P Perera
- Southern Insect Management Research Unit, USDA-ARS, Stoneville, MS, USA
| | - R V Rane
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - S Richards
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA.
| | - W T Tay
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - T K Walsh
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - A Anderson
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - C J Anderson
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- Biological and Environmental Sciences, University of Stirling, Stirling, UK
| | - S Asgari
- School of Biological Sciences, University of Queensland, Brisbane St Lucia, QLD, Australia
| | - P G Board
- John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia
| | | | - P M Campbell
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - T Chertemps
- Sorbonnes Universités, UPMC Université Paris 06, Institute of Ecology and Environmental Sciences of Paris, Paris, France
- National Institute for Agricultural Research (INRA), Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | | | - C W Coppin
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | | | - G Duan
- Research School of Biology, Australian National University, Canberra, ACT, Australia
| | - C A Farnsworth
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - R T Good
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - L B Han
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Y C Han
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - K Hatje
- Max Planck Institute for Biophysical Chemistry, Gottingen, Germany
| | - I Horne
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - Y P Huang
- Institute of Plant Physiology and Ecology, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - D S T Hughes
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - E Jacquin-Joly
- National Institute for Agricultural Research (INRA), Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - W James
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - S Jhangiani
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - M Kollmar
- Max Planck Institute for Biophysical Chemistry, Gottingen, Germany
| | - S S Kuwar
- Max Planck Institute of Chemical Ecology, Jena, Germany
| | - S Li
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - N-Y Liu
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming, 650224, China
| | - M T Maibeche
- Sorbonnes Universités, UPMC Université Paris 06, Institute of Ecology and Environmental Sciences of Paris, Paris, France
- National Institute for Agricultural Research (INRA), Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - J R Miller
- J. Craig Venter Institute, Rockville, MD, USA
| | - N Montagne
- Sorbonnes Universités, UPMC Université Paris 06, Institute of Ecology and Environmental Sciences of Paris, Paris, France
| | - T Perry
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - J Qu
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - S V Song
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - G G Sutton
- J. Craig Venter Institute, Rockville, MD, USA
| | - H Vogel
- Max Planck Institute of Chemical Ecology, Jena, Germany
| | - B P Walenz
- J. Craig Venter Institute, Rockville, MD, USA
| | - W Xu
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia
| | - H-J Zhang
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Z Zou
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - P Batterham
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | | | - R Feyereisen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej, Denmark
| | - R A Gibbs
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - D G Heckel
- Max Planck Institute of Chemical Ecology, Jena, Germany
| | - A McGrath
- CSIRO Black Mountain, GPO Box 1700, Canberra, ACT, 2600, Australia
| | - C Robin
- School of Biological Sciences, University of Melbourne, Parkville, Vic, Australia
| | - S E Scherer
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - K C Worley
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Y D Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu, China
| |
Collapse
|
34
|
Duan G, Hakoyama T, Kamiya T, Miwa H, Lombardo F, Sato S, Tabata S, Chen Z, Watanabe T, Shinano T, Fujiwara T. LjMOT1, a high-affinity molybdate transporter from Lotus japonicus, is essential for molybdate uptake, but not for the delivery to nodules. Plant J 2017; 90:1108-1119. [PMID: 28276145 DOI: 10.1111/tpj.13532] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 03/01/2017] [Accepted: 03/01/2017] [Indexed: 05/06/2023]
Abstract
Molybdenum (Mo) is an essential nutrient for plants, and is required for nitrogenase activity of legumes. However, the pathways of Mo uptake from soils and then delivery to the nodules have not been characterized in legumes. In this study, we characterized a high-affinity Mo transporter (LjMOT1) from Lotus japonicus. Mo concentrations in an ethyl methanesulfonate-mutagenized line (ljmot1) decreased by 70-95% compared with wild-type (WT). By comparing the DNA sequences of four AtMOT1 homologs between mutant and WT lines, one point mutation was found in LjMOT1, which altered Trp292 to a stop codon; no mutation was found in the other homologous genes. The phenotype of Mo concentrations in F2 progeny from ljmot1 and WT crosses were associated with genotypes of LjMOT1. Introduction of endogenous LjMOT1 to ljmot1 restored Mo accumulation to approximately 60-70% of the WT. Yeast expressing LjMOT1 exhibited high Mo uptake activity, and the Km was 182 nm. LjMOT1 was expressed mainly in roots, and its expression was not affected by Mo supply or rhizobium inoculation. Although Mo accumulation in the nodules of ljmot1 was significantly lower than that of WT, it was still high enough for normal nodulation and nitrogenase activity, even for cotyledons-removed ljmot1 plants grown under low Mo conditions, in this case the plant growth was significantly inhibited by Mo deficiency. Our results suggest that LjMOT1 is an essential Mo transporter in L. japonicus for Mo uptake from the soil and growth, but is not for Mo delivery to the nodules.
Collapse
Affiliation(s)
- Guilan Duan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tsuneo Hakoyama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takehiro Kamiya
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Hiroki Miwa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Fabien Lombardo
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
- National Agriculture and Food Research Organization (NARO) Institute of Crop Science, Ibaraki, 305-8518, Japan
| | - Shusei Sato
- Kazusa DNA Research Institute, Kisarazu, Chiba, 292-0812, Japan
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, 980-8577, Japan
| | - Satoshi Tabata
- Kazusa DNA Research Institute, Kisarazu, Chiba, 292-0812, Japan
| | - Zheng Chen
- Graduate School of Agriculture, Hokkaido University, Kita-ku, Sapporo, 010-8589, Japan
- Department of Environmental Science, Xi'an Jiaotong-Liverpool University, Suzhou, Jiangsu, 215123, China
| | - Toshihiro Watanabe
- Graduate School of Agriculture, Hokkaido University, Kita-ku, Sapporo, 010-8589, Japan
| | - Takuro Shinano
- Graduate School of Agriculture, Hokkaido University, Kita-ku, Sapporo, 010-8589, Japan
- NARO Tohoku Agricultural Research Center, Arai, Fukushima, 960-2156, Japan
| | - Toru Fujiwara
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| |
Collapse
|
35
|
Gohel V, Ranganathan K, Duan G. Single temperature liquefaction process at different operating pHs to improve ethanol production from Indian rice and corn feedstock. Prep Biochem Biotechnol 2017; 47:342-348. [PMID: 27737626 DOI: 10.1080/10826068.2016.1244687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Conventional grain ethanol manufacturing is a high-temperature energy-intensive process comprising of multiple-unit operations when combined with lower ethanol recovery results in higher production cost. In liquefaction, jet cooking accounts for significant energy cost, while strong acid or base used for pH adjustment presents a safety hazard. A need is felt for sustainable ethanol manufacturing process that is less hazardous, consumes lower energy, and operates in a low pH range of 4.50-5.50. A single temperature liquefaction (STL) process that could efficiently operate at lower liquefaction temperature over a pH range of 4.50-5.50 was developed using rice and corn feedstock. Ethanol recovery witnessed at pH 4.5, 5.0, and 5.5 are 481.2 ± 1.5, 492.4 ± 1.5, and 493.6 ± 1.5 L MT-1 rice, respectively. Similarly, ethanol recovery witnessed at pH 4.5, 5.0, and 5.5 are 404.6 ± 1.3, 413.9 ± 0.8, and 412.4 ± 1.8 L MT-1 corn, respectively. The improvement in ethanol recovery is attributed to higher starch conversion by alpha-amylase even at pH as low as 4.50. Thus, the STL process operated at pH lower than 5.20 is poised to enhance sustainability by offering dual advantage of energy as well as chemical saving.
Collapse
Affiliation(s)
- V Gohel
- a DuPont Knowledge Center, E.I. DuPont India Pvt Ltd., DS-9, ICICI Knowledge Park , Hyderabad , India
| | - K Ranganathan
- b DuPont Industrial Sciences, Genencor (China) Bio-Products Co. Ltd, Wuxi , Peoples Republic of China
| | - G Duan
- b DuPont Industrial Sciences, Genencor (China) Bio-Products Co. Ltd, Wuxi , Peoples Republic of China
| |
Collapse
|
36
|
Su P, Ding H, Zhang W, Duan G, Yang Y, Long J, Du L, Xie C, Jin C, Hu C, Sun Z, Duan Z, Gong L, Tian W. Joint Association of Obesity and Hypertension with Disability in the Elderly-- A Community-Based Study of Residents in Shanghai, China. J Nutr Health Aging 2017; 21:362-369. [PMID: 28346562 DOI: 10.1007/s12603-016-0777-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Although both obesity and hypertension are known risk factors for disability, the joint association of obesity and hypertension with risk of disability is unknown. This paper is aim to examine the joint association of obesity and hypertension with risk of disability. METHODS Cross-sectional study with 8060 elderly community-dwelling individuals participating in the survey initiated by Shanghai Health and Family Planning Commission from March to September 2013. Obesity was measured using the body mass index (BMI) in World Health Organization (WHO) Asia criteria. Hypertension, based on the doctor's diagnosis, was obtained through face-to-face interview. Disability was measured using the self-reported physical self-maintenance scale (PSMS) and the instrumental activities of daily living (IADL) scale developed by Lawton and Brody. RESULTS A total of 8.97% of participants reported ADL disability, and 15.18% for IADL disability. After adjusting social demographics and chronic conditions, the risk of ADL disability was progressively greater in obese persons with hypertension (OR=1.40, 95% CI=1.05-1.89), underweight persons without hypertension (OR=2.05, 95% CI=1.29-3.25), and underweight persons with hypertension (OR=2.14, 95% CI=1.36-3.36). For IADL disability, only underweight persons with hypertension were significantly associated (OR=1.65, 95% CI=1.23-2.21). CONCLUSIONS Low or extremely high BMI, independent of its metabolic consequences, is a risk factor for disability among the elderly. Simple hypertension wasn't significantly associated with disability. In addition, having hypertension significantly increased the risk of ADL disability in obese individuals and IADL disability in underweight individuals.
Collapse
Affiliation(s)
- P Su
- Wenhua Tian, PhD, Department of Health Services Management, the Second Military Medical University, No.800 Xiangyin Rd, Shanghai, 200433, China; Tel: +86-21-8187-1428; Fax: +86-21-8187-1428; Email address:
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Soetanto R, Hynes CJ, Patel HR, Humphreys DT, Evers M, Duan G, Parker BJ, Archer SK, Clancy JL, Graham RM, Beilharz TH, Smith NJ, Preiss T. Role of miRNAs and alternative mRNA 3'-end cleavage and polyadenylation of their mRNA targets in cardiomyocyte hypertrophy. Biochim Biophys Acta 2016; 1859:744-56. [PMID: 27032571 DOI: 10.1016/j.bbagrm.2016.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/25/2016] [Accepted: 03/20/2016] [Indexed: 12/19/2022]
Abstract
miRNAs play critical roles in heart disease. In addition to differential miRNA expression, miRNA-mediated control is also affected by variable miRNA processing or alternative 3'-end cleavage and polyadenylation (APA) of their mRNA targets. To what extent these phenomena play a role in the heart remains unclear. We sought to explore miRNA processing and mRNA APA in cardiomyocytes, and whether these change during cardiac hypertrophy. Thoracic aortic constriction (TAC) was performed to induce hypertrophy in C57BL/6J mice. RNA extracted from cardiomyocytes of sham-treated, pre-hypertrophic (2 days post-TAC), and hypertrophic (7 days post-TAC) mice was subjected to small RNA- and poly(A)-test sequencing (PAT-Seq). Differential expression analysis matched expectations; nevertheless we identified ~400 mRNAs and hundreds of noncoding RNA loci as altered with hypertrophy for the first time. Although multiple processing variants were observed for many miRNAs, there was little change in their relative proportions during hypertrophy. PAT-Seq mapped ~48,000 mRNA 3'-ends, identifying novel 3' untranslated regions (3'UTRs) for over 7000 genes. Importantly, hypertrophy was associated with marked changes in APA with a net shift from distal to more proximal mRNA 3'-ends, which is predicted to decrease overall miRNA repression strength. We independently validated several examples of 3'UTR proportion change and showed that alternative 3'UTRs associate with differences in mRNA translation. Our work suggests that APA contributes to altered gene expression with the development of cardiomyocyte hypertrophy and provides a rich resource for a systems-level understanding of miRNA-mediated regulation in physiological and pathological states of the heart.
Collapse
Affiliation(s)
- R Soetanto
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - C J Hynes
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - H R Patel
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - D T Humphreys
- Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales 2010, Australia
| | - M Evers
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - G Duan
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - B J Parker
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - S K Archer
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia; Monash Bioinformatics Platform, Monash University, Melbourne, Victoria 3800, Australia
| | - J L Clancy
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia
| | - R M Graham
- Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales 2010, Australia
| | - T H Beilharz
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Melbourne, Victoria 3800, Australia
| | - N J Smith
- Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales 2010, Australia
| | - T Preiss
- EMBL-Australia Collaborating Group, Department of Genome Sciences, John Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory 2601, Australia; Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales 2010, Australia.
| |
Collapse
|
38
|
Deng C, Zhang B, Zhang S, Duan C, Cao Y, Kang W, Yan H, Ding X, Zhou F, Wu L, Duan G, Shen S, Xu G, Zhang W, Chen M, Huang S, Zhang X, Lv Y, Ling T, Wang L, Zou X. Low nanomolar concentrations of Cucurbitacin-I induces G2/M phase arrest and apoptosis by perturbing redox homeostasis in gastric cancer cells in vitro and in vivo. Cell Death Dis 2016; 7:e2106. [PMID: 26890145 PMCID: PMC5399186 DOI: 10.1038/cddis.2016.13] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/06/2016] [Accepted: 01/07/2016] [Indexed: 12/20/2022]
Abstract
Cucurbitacin-I (Cu-I, also known as Elatericin B or JSI-124) is developed to inhibit constitutive and abnormal activation of STAT3 in many cancers, demonstrating a potent anticancer activity by targeting disruption of STAT3 function. Here, we for the first time systematically studied the underlying molecular mechanisms of Cu-I-induced gastric cancer cell death both in vitro and in vivo. In our study, we show that Cu-I markedly inhibits gastric cancer cell growth by inducing G2/M phase cell cycle arrest and apoptosis at low nanomolar concentrations via a STAT3-independent mechanism. Notably, Cu-I significantly decreases intracellular GSH/GSSG ratio by inhibiting NRF2 pathway to break cellular redox homeostasis, and subsequently induces the expression of GADD45α in a p53-independent manner, and activates JNK/p38 MAPK signaling. Interestingly, Cu-I-induced GADD45α and JNK/p38 MAPK signaling form a positive feedback loop and can be reciprocally regulated by each other. Therefore, the present study provides new insights into the mechanisms of antitumor effects of Cu-I, supporting Cu-I as an attractive therapeutic drug in gastric cancer by modulating the redox balance.
Collapse
Affiliation(s)
- C Deng
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - B Zhang
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - S Zhang
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - C Duan
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - Y Cao
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - W Kang
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - H Yan
- Department of Laboratory Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China
| | - X Ding
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - F Zhou
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - L Wu
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - G Duan
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - S Shen
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - G Xu
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - W Zhang
- Department of General Surgery, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - M Chen
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - S Huang
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - X Zhang
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - Y Lv
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - T Ling
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - L Wang
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| | - X Zou
- Department of Gastroenterology, Drum Tower Hospital, Medical School of Nanjing University, Jiangsu Province, China
| |
Collapse
|
39
|
Zhao R, Duan G, Yang T, Niu S, Wang Y. Purification, Characterization and Antibacterial Mechanism of Bacteriocin from Lactobacillus Acidophilus XH1. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i6.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
40
|
Keyvaninia S, Uvin S, Tassaert M, Wang Z, Fu X, Latkowski S, Marien J, Thomassen L, Lelarge F, Duan G, Lepage G, Verheyen P, Van Campenhout J, Bente E, Roelkens G. III-V-on-silicon anti-colliding pulse-type mode-locked laser. Opt Lett 2015; 40:3057-3060. [PMID: 26125366 DOI: 10.1364/ol.40.003057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An anti-colliding pulse-type III-V-on-silicon passively mode-locked laser is presented for the first time based on a III-V-on-silicon distributed Bragg reflector as outcoupling mirror implemented partially underneath the III-V saturable absorber. Passive mode-locking at 4.83 GHz repetition rate generating 3 ps pulses is demonstrated. The generated fundamental RF tone shows a 1.7 kHz 3 dB linewidth. Over 9 mW waveguide coupled output power is demonstrated.
Collapse
|
41
|
Keyvaninia S, Uvin S, Tassaert M, Fu X, Latkowski S, Mariën J, Thomassen L, Lelarge F, Duan G, Verheyen P, Lepage G, Van Campenhout J, Bente E, Roelkens G. Narrow-linewidth short-pulse III-V-on-silicon mode-locked lasers based on a linear and ring cavity geometry. Opt Express 2015; 23:3221-3229. [PMID: 25836180 DOI: 10.1364/oe.23.003221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Picosecond-pulse III-V-on-silicon mode-locked lasers based on linear and ring extended cavity geometries are presented. In passive mode-locked operation a 12 kHz -3dB linewidth of the fundamental RF tone at 4.7 GHz is obtained for the linear cavity geometry and 16 kHz for the ring cavity geometry. Stabilization of the repetition rate of these devices using hybrid mode-locking is also demonstrated.
Collapse
|
42
|
Long J, Duan G, Tian W, Wang L, Su P, Zhang W, Lan J, Zhang H. Hypertension and risk of depression in the elderly: a meta-analysis of prospective cohort studies. J Hum Hypertens 2014; 29:478-82. [PMID: 25411056 DOI: 10.1038/jhh.2014.112] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/23/2014] [Accepted: 10/15/2014] [Indexed: 01/11/2023]
Abstract
The objective of the study was to assess the relationship between hypertension and risk of depression. The relationship between hypertension and depression has been discussed for a long time, but the results are controversial. Studies were searched from PubMed and Cochrane up to 24 March 2014. Any prospective cohort study, which possibly reported the relationship between hypertension and depression, was included. The random effect model was used to calculate the pooled relative risk (RR). Finally, five prospective cohort studies were included for analysis, with a total of 9647 participants involved. Our meta-analysis does not support that hypertension is probably a risk factor of depression. The pooled RR was 1.16 (95% confidence interval: 0.91, 1.42) when those exposed to hypertension were compared with those who were not. Subgroup analysis, sensitivity analysis and publication bias test suggested that the overall result of this analysis was robust. Further studies are needed to exclude the effects of other confounding factors.
Collapse
Affiliation(s)
- J Long
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - G Duan
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - W Tian
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - L Wang
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - P Su
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - W Zhang
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - J Lan
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| | - H Zhang
- Department of Health Services Management, Second Military Medical University, Shanghai, China
| |
Collapse
|
43
|
Norton GJ, Douglas A, Lahner B, Yakubova E, Guerinot ML, Pinson SRM, Tarpley L, Eizenga GC, McGrath SP, Zhao FJ, Islam MR, Islam S, Duan G, Zhu Y, Salt DE, Meharg AA, Price AH. Genome wide association mapping of grain arsenic, copper, molybdenum and zinc in rice (Oryza sativa L.) grown at four international field sites. PLoS One 2014; 9:e89685. [PMID: 24586963 PMCID: PMC3934919 DOI: 10.1371/journal.pone.0089685] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 01/22/2014] [Indexed: 11/19/2022] Open
Abstract
The mineral concentrations in cereals are important for human health, especially for individuals who consume a cereal subsistence diet. A number of elements, such as zinc, are required within the diet, while some elements are toxic to humans, for example arsenic. In this study we carry out genome-wide association (GWA) mapping of grain concentrations of arsenic, copper, molybdenum and zinc in brown rice using an established rice diversity panel of ∼300 accessions and 36.9 k single nucleotide polymorphisms (SNPs). The study was performed across five environments: one field site in Bangladesh, one in China and two in the US, with one of the US sites repeated over two years. GWA mapping on the whole dataset and on separate subpopulations of rice revealed a large number of loci significantly associated with variation in grain arsenic, copper, molybdenum and zinc. Seventeen of these loci were detected in data obtained from grain cultivated in more than one field location, and six co-localise with previously identified quantitative trait loci. Additionally, a number of candidate genes for the uptake or transport of these elements were located near significantly associated SNPs (within 200 kb, the estimated global linkage disequilibrium previously employed in this rice panel). This analysis highlights a number of genomic regions and candidate genes for further analysis as well as the challenges faced when mapping environmentally-variable traits in a highly genetically structured diversity panel.
Collapse
Affiliation(s)
- Gareth J. Norton
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Alex Douglas
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Brett Lahner
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Elena Yakubova
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Mary Lou Guerinot
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, United States of America
| | - Shannon R. M. Pinson
- USDA ARS, Dale Bumpers National Rice Research Center, Stuttgart, Arkansas, United States of America
| | - Lee Tarpley
- Texas A&M University System, Texas A&M AgriLife Research, Beaumont, Texas, United States of America
| | - Georgia C. Eizenga
- USDA ARS, Dale Bumpers National Rice Research Center, Stuttgart, Arkansas, United States of America
| | | | - Fang-Jie Zhao
- Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - M. Rafiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Shofiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Guilan Duan
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yongguan Zhu
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - David E. Salt
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Andrew A. Meharg
- Institute for Global Food Security, Queen’s University Belfast, David Keir Building, Belfast, United Kingdom
| | - Adam H. Price
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
- * E-mail:
| |
Collapse
|
44
|
Norton GJ, Douglas A, Lahner B, Yakubova E, Guerinot ML, Pinson SRM, Tarpley L, Eizenga GC, McGrath SP, Zhao FJ, Islam MR, Islam S, Duan G, Zhu Y, Salt DE, Meharg AA, Price AH. Genome wide association mapping of grain arsenic, copper, molybdenum and zinc in rice (Oryza sativa L.) grown at four international field sites. PLoS One 2014. [PMID: 24586963 DOI: 10.137/journalpone.0089685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023] Open
Abstract
The mineral concentrations in cereals are important for human health, especially for individuals who consume a cereal subsistence diet. A number of elements, such as zinc, are required within the diet, while some elements are toxic to humans, for example arsenic. In this study we carry out genome-wide association (GWA) mapping of grain concentrations of arsenic, copper, molybdenum and zinc in brown rice using an established rice diversity panel of ∼ 300 accessions and 36.9 k single nucleotide polymorphisms (SNPs). The study was performed across five environments: one field site in Bangladesh, one in China and two in the US, with one of the US sites repeated over two years. GWA mapping on the whole dataset and on separate subpopulations of rice revealed a large number of loci significantly associated with variation in grain arsenic, copper, molybdenum and zinc. Seventeen of these loci were detected in data obtained from grain cultivated in more than one field location, and six co-localise with previously identified quantitative trait loci. Additionally, a number of candidate genes for the uptake or transport of these elements were located near significantly associated SNPs (within 200 kb, the estimated global linkage disequilibrium previously employed in this rice panel). This analysis highlights a number of genomic regions and candidate genes for further analysis as well as the challenges faced when mapping environmentally-variable traits in a highly genetically structured diversity panel.
Collapse
Affiliation(s)
- Gareth J Norton
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Alex Douglas
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Brett Lahner
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Elena Yakubova
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, United States of America
| | - Mary Lou Guerinot
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, United States of America
| | - Shannon R M Pinson
- USDA ARS, Dale Bumpers National Rice Research Center, Stuttgart, Arkansas, United States of America
| | - Lee Tarpley
- Texas A&M University System, Texas A&M AgriLife Research, Beaumont, Texas, United States of America
| | - Georgia C Eizenga
- USDA ARS, Dale Bumpers National Rice Research Center, Stuttgart, Arkansas, United States of America
| | - Steve P McGrath
- Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | - Fang-Jie Zhao
- Rothamsted Research, Harpenden, Hertfordshire, United Kingdom ; College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - M Rafiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Shofiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Guilan Duan
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yongguan Zhu
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - David E Salt
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Andrew A Meharg
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Belfast, United Kingdom
| | - Adam H Price
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| |
Collapse
|
45
|
Zou FC, Duan G, Xie YJ, Zhou Y, Dong GD, Lin RQ, Zhu XQ. Molluscicidal activity of the plantEupatorium adenophorumagainstOncomelania hupensis, the intermediate host snail ofSchistosoma japonicum. Annals of Tropical Medicine & Parasitology 2013; 103:549-53. [DOI: 10.1179/136485909x451780] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
46
|
|
47
|
Gohel V, Duan G. Conventional process for ethanol production from Indian broken rice and pearl millet. Bioprocess Biosyst Eng 2012; 35:1297-308. [PMID: 22407108 DOI: 10.1007/s00449-012-0717-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 02/23/2012] [Indexed: 11/25/2022]
Abstract
A conventional process for ethanol production involving liquefaction followed by simultaneous saccharification and fermentation (SSF) under the yeast fermentation conditions, was investigated at 30 and 35% dry solid (DS) of Indian broken rice and pearl millet feedstocks. The study followed the typical conventional process currently in use by the Indian Ethanol Industry. Liquefaction was carried out using a thermostable alpha amylase, and whereas SSF with a glucoamylase with additional side activities of pullulanase and protease under the yeast fermentation conditions. To measure the enzyme efficacy in the liquefaction process, fermentable sugar and liquefact solubility (brix) were monitored at the end of the liquefaction process. The liquefact was subjected to SSF with yeast. Addition of an acid fungal protease at a concentration of 0.1 kg per metric ton of grain during SSF was observed to accelerate yeast growth and ultimately, ethanol yield with both feedstocks. With both concentrations of feedstocks, the fermentation efficiency and ethanol recovery were determined. This study assesses the potential of these enzymes for ethanol production with higher dry solid concentration (≥30% w/w DS) of both these feedstocks in the conventional process to achieve higher plant throughput without compromising fermentation efficiency and ethanol recovery.
Collapse
Affiliation(s)
- V Gohel
- Genencor, Danisco (India) Pvt. Ltd., Roz-Ka-Meo Industrial Area, Sohna, India.
| | | |
Collapse
|
48
|
Duan G, Kamiya T, Ishikawa S, Arao T, Fujiwara T. Expressing ScACR3 in rice enhanced arsenite efflux and reduced arsenic accumulation in rice grains. Plant Cell Physiol 2012; 53:154-63. [PMID: 22107880 DOI: 10.1093/pcp/pcr161] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Arsenic (As) accumulation in rice grain poses a serious health risk to populations with high rice consumption. Extrusion of arsenite [As(III)] by ScAcr3p is the major arsenic detoxification mechanism in Saccharomyces cerevisiae. However, ScAcr3p homolog is absent in higher plants, including rice. In this study, ScACR3 was introduced into rice and expressed under the control of the Cauliflower mosaic virus (CaMV) 35S promoter. In the transgenic lines, As concentrations in shoots and roots were about 30% lower than in the wild type, while the As translocation factors were similar between transgenic lines and the wild type. The roots of transgenic plants exhibited significantly higher As efflux activities than those of the wild type. Within 24 h exposure to 10 μM arsenate [As(V)], roots of ScACR3-expressing plants extruded 80% of absorbed As(V) to the external solution as As(III), while roots of the wild type extruded 50% of absorbed As(V). Additionally, by exposing the As-containing rice plants to an As-lacking solution for 24 h, about 30% of the total As derived from pre-treatment was extruded to the external solution by ScACR3-expressing plants, while about 15% of As was extruded by wild-type plants. Importantly, ScACR3 expression significantly reduced As accumulation in rice straws and grains. When grown in flooded soil irrigated with As(III)-containing water, the As concentration in husk and brown rice of the transgenic lines was reduced by 30 and 20%, respectively, compared with the wild type. This study reports a potential strategy to reduce As accumulation in the food chain by expressing heterologous genes in crops.
Collapse
Affiliation(s)
- Guilan Duan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | | | | | | | | |
Collapse
|
49
|
Shu F, Wu D, Zhou Z, Lv R, Yang J, Nie K, Duan G, Zou F. Seroprevalence of Toxoplasma gondii Infection in Slaughter Pigs in Sichuan, China. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/javaa.2011.1638.1639] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
50
|
Hansen HR, Raab A, Price AH, Duan G, Zhu Y, Norton GJ, Feldmann J, Meharg AA. Identification of tetramethylarsonium in rice grains with elevated arsenic content. ACTA ACUST UNITED AC 2011; 13:32-4. [DOI: 10.1039/c0em00460j] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|