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Comparative metagenomic analysis of the microbial communities in the surroundings of Iheya north and Iheya ridge hydrothermal fields reveals insights into the survival strategy of microorganisms in deep-sea environments
Wang, Hai-liang1,2,3; Sun, Li1,2
2018-04-01
Source PublicationJOURNAL OF MARINE SYSTEMS
ISSN0924-7963
Volume180Pages:102-111
Corresponding AuthorSun, Li(Isun@qdio.ac.cn)
AbstractIn this study, metagenomic analysis was performed to investigate the taxonomic compositions and metabolic profiles of the microbial communities inhabiting the sediments in the surroundings of Iheya North and Iheya Ridge hydrothermal fields. The microbial communities in four different samples were found to be dominated by bacteria and, to a much lesser extent, archaea belonging to the phyla Proteobacteria, Actinobacteria, Planctomycetes, Firmicutes, Deinococcus-Thermus, and Nitrospirae, which play important roles in the cycling of carbon, nitrogen, and sulfur. All four microbial communities (i) contained chemoautotrophs and heterotrophs, the former probably fixed CO2 via various carbon fixation pathways, and the latter may degrade organic matters using nitrate and sulfate as electron acceptors, (ii) exhibited an abundance of DNA repair genes and bacterial sulfur oxidation mediated by reverse sulfate reduction, and (iii) harbored bacteria and archaea involved in anaerobic methane oxidation via intra-aerobic denitrification and reverse methanogenesis, which were found for the first time in hydrothermal areas. Furthermore, genes involved in DNA repair, reductive acetyl-CoA pathway, and ammonia metabolism were possibly affected by distance to the vent fields. These findings facilitate our understanding of the strategies of the microbial communities to adapt to the environments in deep sea areas associated with hydrothermal vents. (C) 2016 Elsevier B.V. All rights reserved.
KeywordMetagenomics Deep-sea sediment Microbial community Okinawa Trough Hydrothermal vent
DOI10.1016/j.jmarsys.2016.10.006
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA11030401] ; Taishan Scholar Program of Shandong Province
WOS Research AreaGeology ; Marine & Freshwater Biology ; Oceanography
WOS SubjectGeosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
WOS IDWOS:000429514700009
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158432
Collection实验海洋生物学重点实验室
Corresponding AuthorSun, Li
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Hai-liang,Sun, Li. Comparative metagenomic analysis of the microbial communities in the surroundings of Iheya north and Iheya ridge hydrothermal fields reveals insights into the survival strategy of microorganisms in deep-sea environments[J]. JOURNAL OF MARINE SYSTEMS,2018,180:102-111.
APA Wang, Hai-liang,&Sun, Li.(2018).Comparative metagenomic analysis of the microbial communities in the surroundings of Iheya north and Iheya ridge hydrothermal fields reveals insights into the survival strategy of microorganisms in deep-sea environments.JOURNAL OF MARINE SYSTEMS,180,102-111.
MLA Wang, Hai-liang,et al."Comparative metagenomic analysis of the microbial communities in the surroundings of Iheya north and Iheya ridge hydrothermal fields reveals insights into the survival strategy of microorganisms in deep-sea environments".JOURNAL OF MARINE SYSTEMS 180(2018):102-111.
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