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Microbial Sulfur Cycle in Two Hydrothermal Chimneys on the Southwest Indian Ridge
文献类型：期刊论文
| 作者 | Shao, Zongze3; Cao, Huiluo2; Wang, Yong1,2 ; Zeng, Xiang3; Lee, On On2; Qian, Pei-Yuan2
|
| 刊名 | MBIO
 |
| 出版日期 | 2014 |
| 卷号 | 5期号:1 |
| DOI | 10.1128/mBio.00980-13 |
| 文献子类 | Article |
| 英文摘要 | Sulfur is an important element in sustaining microbial communities present in hydrothermal vents. Sulfur oxidation has been extensively studied due to its importance in chemosynthetic pathways in hydrothermal fields; however, less is known about sulfate reduction. Here, the metagenomes of hydrothermal chimneys located on the ultraslow-spreading Southwest Indian Ridge (SWIR) were pyrosequenced to elucidate the associated microbial sulfur cycle. A taxonomic summary of known genes revealed a few dominant bacteria that participated in the microbial sulfur cycle, particularly sulfate-reducing Deltaproteobacteria. The metagenomes studied contained highly abundant genes related to sulfur oxidation and reduction. Several carbon metabolic pathways, in particular the Calvin-Benson-Bassham pathway and the reductive tricarboxylic acid cycles for CO2 fixation, were identified in sulfur-oxidizing autotrophic bacteria. In contrast, highly abundant genes related to the oxidation of short-chain alkanes were grouped with sulfate-reducing bacteria, suggesting an important role for short-chain alkanes in the sulfur cycle. Furthermore, sulfur-oxidizing bacteria were associated with enrichment for genes involved in the denitrification pathway, while sulfate-reducing bacteria displayed enrichment for genes responsible for hydrogen utilization. In conclusion, this study provides insights regarding major microbial metabolic activities that are driven by the sulfur cycle in low-temperature hydrothermal chimneys present on an ultraslow midocean ridge. |
| WOS关键词 | RIBOSOMAL-RNA ; GEN. NOV. ; SEA ; DEEP ; SULFATE ; COMMUNITIES ; VENTS ; OXIDATION ; OCEAN ; GEOMICROBIOLOGY |
| 语种 | 英语 |
| WOS记录号 | WOS:000332526500009 |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/1210]  |
| 专题 | 深海科学研究部_深海生物学研究室_海洋微生物宏基因组与分子进化研究组 |
| 作者单位 | 1.Sanya Inst Deep Sea Sci & Engn, San Ya, Hai Nan, Peoples R China 2.Hong Kong Univ Sci & Technol, Div Life Sci, Hong Kong, Hong Kong, Peoples R China 3.State Ocean Adm, Inst Oceanog 3, Key Lab Marine Biogenet Resources, Xiamen, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Zongze,Cao, Huiluo,Wang, Yong,et al. Microbial Sulfur Cycle in Two Hydrothermal Chimneys on the Southwest Indian Ridge[J]. MBIO,2014,5(1). |
| APA | Shao, Zongze,Cao, Huiluo,Wang, Yong,Zeng, Xiang,Lee, On On,&Qian, Pei-Yuan.(2014).Microbial Sulfur Cycle in Two Hydrothermal Chimneys on the Southwest Indian Ridge.MBIO,5(1). |
| MLA | Shao, Zongze,et al."Microbial Sulfur Cycle in Two Hydrothermal Chimneys on the Southwest Indian Ridge".MBIO 5.1(2014). |
入库方式： OAI收割
来源：深海科学与工程研究所
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