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
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
卷号118期号:2页码:665-679
摘要We 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.
文章类型Article
关键词Microorganisms Biogeochemical Cycling Hydrothermal Deposits Southwest Indian Ridge
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1002/jgrg.20057
收录类别SCI
语种英语
关键词[WOS]MID-ATLANTIC RIDGE ; EAST PACIFIC RISE ; SULFATE-REDUCING BACTERIUM ; 16S RIBOSOMAL-RNA ; DEEP-SEA ; SP-NOV. ; PHYLOGENETIC DIVERSITY ; LOIHI SEAMOUNT ; VENT FLUIDS ; TIME-SERIES
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary
WOS记录号WOS:000324913100022
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/745
专题深海科学研究部_深海地质与地球化学研究室
作者单位1.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
第一作者单位中国科学院深海科学与工程研究所
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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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