Metagenomic Insights into Effects of Chemical Pollutants on Microbial Community Composition and Function in Estuarine Sediments Receiving Polluted River Water
Lu, XM; Chen, C; Zheng, TL; 13736961468@163.com
2017
发表期刊MICROBIAL ECOLOGY
卷号73期号:4页码:791-800
摘要Pyrosequencing and metagenomic profiling were used to assess the phylogenetic and functional characteristics of microbial communities residing in sediments collected from the estuaries of Rivers Oujiang (OS) and Jiaojiang (JS) in the western region of the East China Sea. Another sediment sample was obtained from near the shore far from estuaries, used for contrast (CS). Characterization of estuary sediment bacterial communities showed that toxic chemicals potentially reduced the natural variability in microbial communities, while they increased the microbial metabolic enzymes and pathways. Polycyclic aromatic hydrocarbons (PAHs) and nitrobenzene were negatively correlated with the bacterial community variation. The dominant class in the sediments was Gammaproteobacteria. According to Kyoto Encyclopedia of Genes and Genomes (KEGG) enzyme profiles, dominant enzymes were found in estuarine sediments, which increased greatly, such as 2-oxoglutarate synthase, acetolactate synthase, inorganic diphosphatase, and aconitate hydratase. In KEGG pathway profiles, most of the pathways were also dominated by specific metabolism in these sediments and showed a marked increase, for instance alanine, aspartate, and glutamate metabolism, carbon fixation pathways in prokaryotes, and aminoacyl-tRNA biosynthesis. The estuarine sediment bacterial diversity varied with the polluted river water inputs. In the estuary receiving river water from the more seriously polluted River Oujiang, the sediment bacterial community function was more severely affected.
部门归属[Lu, Xiao-Ming] Wenzhou Vocat Coll Sci & Technol, Inst Ecoenvironm Sci, Wenzhou 325006, Peoples R China; [Chen, Chang] Chinese Acad Sci, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Zheng, Tian-Ling] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China
关键词Chemical Pollutant Estuarine Sediment Metagenomics Microbial Community Metabolic Pathway
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16276
专题中科院海洋生物资源可持续利用重点实验室
通讯作者13736961468@163.com
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Lu, XM,Chen, C,Zheng, TL,et al. Metagenomic Insights into Effects of Chemical Pollutants on Microbial Community Composition and Function in Estuarine Sediments Receiving Polluted River Water[J]. MICROBIAL ECOLOGY,2017,73(4):791-800.
APA Lu, XM,Chen, C,Zheng, TL,&13736961468@163.com.(2017).Metagenomic Insights into Effects of Chemical Pollutants on Microbial Community Composition and Function in Estuarine Sediments Receiving Polluted River Water.MICROBIAL ECOLOGY,73(4),791-800.
MLA Lu, XM,et al."Metagenomic Insights into Effects of Chemical Pollutants on Microbial Community Composition and Function in Estuarine Sediments Receiving Polluted River Water".MICROBIAL ECOLOGY 73.4(2017):791-800.
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