Cold seep nitrogen fixation and its potential relationship with sulfur cycling
文献类型：期刊论文
| 作者 | Quan, Qiumei3,4; Liu, Jiaxing4; Xia, Xiaomin4; Zhang, Si2,4; Ke, Zhixin4; Wang, Minxiao1; Tan, Yehui3,4 |
| 刊名 | MICROBIOLOGY SPECTRUM
 |
| 出版日期 | 2024-08-22 |
| 页码 | 16 |
| 关键词 | diazotroph biogeochemical cycling cold seep dissolved organic matter Dechloromonas genus |
| ISSN号 | 2165-0497 |
| DOI | 10.1128/spectrum.00536-24 |
| 通讯作者 | Tan, Yehui(tanyh@scsio.ac.cn) |
| 英文摘要 | Dinitrogen (N-2) fixation is a crucial source of bioavailable nitrogen in carbon-dominated cold seep systems. Previous studies have shown that diazotrophy is not necessarily dependent on sulfate-dependent anaerobic oxidation of methane for energy, and diverse catabolism can fuel the high-energy-demanding process in sediments. However, it remains unclear whether diazotroph can obtain energy by sulfur oxidation in sulfur-rich cold seep water column. Here, field investigations and in situ experiments were conducted in Haima cold seep to examine the effects of diverse sources of dissolved organic matter (DOM) on N-2 fixation, specifically containing sulfur, carbon, nitrogen, and phosphorus. We found that active N-2 fixation occurred in the water column above the Haima cold seep, with the Dechloromonas genus dominating the diazotroph community as revealed by nifH gene using high-throughput sequencing. In situ experiments showed an increased rate of N-2 fixation (1.15- to 12.70-fold compared to that in control group) and a greater relative abundance of the Dechloromonas genus following enrichment with sulfur-containing organic matter. Furthermore, metagenomic assembly and binning revealed that Dechloromonas sp. carried genes related to N-2 fixation (nifDHK) and sulfur compound oxidation (fccAB and soxABCXYZ), implying that the genus potentially serves as a multifunctional mediator for N-2 fixation and sulfur cycling. Our results provide new insights regarding potential coupling mechanism associated with sulfur-driven N-2 fixation in methane- and sulfide-rich environments. |
| WOS关键词 | SPATIAL-DISTRIBUTION ; DINITROGEN-FIXATION ; N-2 FIXATION ; METHANE ; WATERS ; OXYGEN ; DIAZOTROPHS ; COMMUNITIES ; SEDIMENTS ; BASIN |
| 资助项目 | Development Fund of the South China Sea Institute of Oceanology of the Chinese Academy of Sciences ; National Natural Science Foundation of China[42030407] ; National Natural Science Foundation of China[42090042] ; Guangdong Science and Technology Plan Project ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0401] ; [SCSIO202205] |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001296292900001 |
| 出版者 | AMER SOC MICROBIOLOGY |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/198086]  |
| 专题 | 海洋研究所_深海极端环境与生命过程研究中心 |
| 通讯作者 | Tan, Yehui |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Quan, Qiumei,Liu, Jiaxing,Xia, Xiaomin,et al. Cold seep nitrogen fixation and its potential relationship with sulfur cycling[J]. MICROBIOLOGY SPECTRUM,2024:16. |
| APA | Quan, Qiumei.,Liu, Jiaxing.,Xia, Xiaomin.,Zhang, Si.,Ke, Zhixin.,...&Tan, Yehui.(2024).Cold seep nitrogen fixation and its potential relationship with sulfur cycling.MICROBIOLOGY SPECTRUM,16. |
| MLA | Quan, Qiumei,et al."Cold seep nitrogen fixation and its potential relationship with sulfur cycling".MICROBIOLOGY SPECTRUM (2024):16. |
入库方式： OAI收割
来源：海洋研究所
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