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Molecular evidence for microorganisms participating in Fe, Mn, and S biogeochemical cycling in two low-temperature hydrothermal fields at the Southwest Indian Ridge
Li, Jiwei1,2,3; Peng, Xiaotong2,3; Zhou, Huaiyang2; Li, Jiangtao2; Sun, Zhilei2,4
2013-06-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
Volume118Issue:2Pages:665-679
AbstractWe examined two low-temperature hydrothermal deposits rich in Fe-Si-Mn collected from the recently discovered hydrothermal fields at the Southwest Indian Ridge using mineralogical, geochemical, and molecular biological techniques. The mineralogical and geochemical analyses indicated that the low-temperature hydrothermal fields would provide a warm and chemical species-rich habitat for chemosynthetic-based hydrothermal ecosystems. Analyses of 16S rRNA sequences showed that -Proteobacteria, Pseudoalteromonas, Leptothrix, and Pseudomonas were potential Fe and Mn oxidizers in the low-temperature hydrothermal environments, but they were not present in equal abundance among the subniches. Some potential Fe and Mn reducers were also recovered; they were more commonly found in the exterior black Fe-Mn oxides. The difference between the exterior black Fe-Mn oxides and the interior Opal-A could be related to differences in in situ physicochemical conditions. We also identified microbial players that may participate in sulfur (S) geochemical cycling in these low-temperature hydrothermal environments via analyses of 16S rRNA sequences and the aprA functional gene. The results indicated that members of -Proteobacteria and -Proteobacteria were involved in the S oxidation process, while members of -Proteobacteria, Nitrospirae, Firmicutes, and Archaea might participate in the S reduction process. Fe, Mn, and S oxidizers and reducers might actively participate in hydrothermal biogeochemical processes, which could influence the transfer of chemical species and the formation of biogenic minerals.
SubtypeArticle
KeywordMicroorganisms Biogeochemical Cycling Hydrothermal Deposits Southwest Indian Ridge
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1002/jgrg.20057
Indexed BySCI
Language英语
WOS KeywordMID-ATLANTIC RIDGE ; EAST PACIFIC RISE ; SULFATE-REDUCING BACTERIUM ; 16S RIBOSOMAL-RNA ; DEEP-SEA ; SP-NOV. ; PHYLOGENETIC DIVERSITY ; LOIHI SEAMOUNT ; VENT FLUIDS ; TIME-SERIES
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary
WOS IDWOS:000324913100022
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/745
Collection深海科学研究部_深海地质与地球化学研究室
Affiliation1.Southwest Jiaotong Univ, Chengdu, Peoples R China
2.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
3.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
4.Qingdao Inst Marine Geol, Qingdao, Peoples R China
First Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Recommended Citation
GB/T 7714
Li, Jiwei,Peng, Xiaotong,Zhou, Huaiyang,et al. Molecular evidence for microorganisms participating in Fe, Mn, and S biogeochemical cycling in two low-temperature hydrothermal fields at the Southwest Indian Ridge[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2013,118(2):665-679.
APA Li, Jiwei,Peng, Xiaotong,Zhou, Huaiyang,Li, Jiangtao,&Sun, Zhilei.(2013).Molecular evidence for microorganisms participating in Fe, Mn, and S biogeochemical cycling in two low-temperature hydrothermal fields at the Southwest Indian Ridge.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,118(2),665-679.
MLA Li, Jiwei,et al."Molecular evidence for microorganisms participating in Fe, Mn, and S biogeochemical cycling in two low-temperature hydrothermal fields at the Southwest Indian Ridge".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 118.2(2013):665-679.
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