Cold seeps are potential hotspots of deep-sea nitrogen loss driven by microorganisms across 21 phyla
文献类型：期刊论文
| 作者 | Jiang, Qiuyun1,2; Cao, Lei3; Han, Yingchun1; Li, Shengjie4; Zhao, Rui5; Zhang, Xiaoli6; Ruff, S. Emil7; Zhao, Zhuoming1; Peng, Jiaxue1,8; Liao, Jing1 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2025-02-14 |
| 卷号 | 16期号:1页码:16 |
| DOI | 10.1038/s41467-025-56774-1 |
| 通讯作者 | Lin, Xianbiao(linxianbiao@ouc.edu.cn) ; Dong, Xiyang(dongxiyang@tio.org.cn) |
| 英文摘要 | Nitrogen bioavailability, governed by fixation and loss processes, is crucial for oceanic productivity and global biogeochemical cycles. The key nitrogen loss organisms-denitrifiers and anaerobic ammonium-oxidizing (anammox) bacteria-remain poorly understood in deep-sea cold seeps. This study combined geochemical measurements, 15N stable isotope tracer analysis, metagenomics, metatranscriptomics, and three-dimensional protein structural simulations to explore cold-seeps nitrogen loss processes. Geochemical evidence from 359 sediment samples shows significantly higher nitrogen loss rates in cold seeps compared to typical deep-sea sediments, with nitrogen loss flux from surface sediments estimated at 4.96-7.63 Tg N yr-1 (1.65-2.54% of global marine sediment). Examination of 147 million non-redundant genes indicates a high prevalence of nitrogen loss genes, including nitrous-oxide reductase (NosZ; 6.88 genes per million reads, GPM), nitric oxide dismutase (Nod; 1.29 GPM), and hydrazine synthase (HzsA; 3.35 GPM) in surface sediments. Analysis of 3,164 metagenome-assembled genomes expands the nitrous-oxide reducers by three phyla, nitric oxide-dismutating organisms by one phylum and two orders, and anammox bacteria by ten phyla going beyond Planctomycetota. These microbes exhibit structural adaptations and complex gene cluster enabling survival in cold seeps. Cold seeps likely are previously underestimated nitrogen loss hotspots, potentially contributing notably to the global nitrogen cycle. |
| WOS关键词 | ANAEROBIC AMMONIUM OXIDATION ; MULTIPLE SEQUENCE ALIGNMENT ; N-2 PRODUCTION ; METHANE OXIDATION ; PROTEIN-STRUCTURE ; HIGH-ACCURACY ; DENITRIFICATION ; ANAMMOX ; SEDIMENTS ; PREDICTION |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001422403900002 |
| 资助机构 | National Science Foundation of China ; Natural Science Foundation Project of Xiamen City ; Natural Science Foundation of Fujian Province ; Scientific Research Foundation of Third Institute of Oceanography ; Fundamental Research Funds for the Central Universities ; Simons Foundation ; Human Frontier Science Program |
| 源URL | [http://ir.yic.ac.cn/handle/133337/40376]  |
| 专题 | 海岸带生物学与生物资源利用重点实验室 海岸带生物资源高效利用研究与发展中心 |
| 通讯作者 | Lin, Xianbiao; Dong, Xiyang |
| 作者单位 | 1.Minist Nat Resources, Inst Oceanog 3, Key Lab Marine Genet Resources, Xiamen, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Deep Sea Res Inst Oceanol, Qingdao, Peoples R China 4.Max Planck Inst Marine Microbiol, Bremen, Germany 5.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA 6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China 7.Marine Biol Lab, J Bay Paul Ctr Comparat Mol Biol & Evolut, Woods Hole, MA 02543 USA 8.Dalian Maritime Univ, Coll Environm Sci & Engn, Dalian, Peoples R China 9.Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Inst Subtrop Agr, Changsha 410125, Peoples R China 10.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Qiuyun,Cao, Lei,Han, Yingchun,et al. Cold seeps are potential hotspots of deep-sea nitrogen loss driven by microorganisms across 21 phyla[J]. NATURE COMMUNICATIONS,2025,16(1):16. |
| APA | Jiang, Qiuyun.,Cao, Lei.,Han, Yingchun.,Li, Shengjie.,Zhao, Rui.,...&Dong, Xiyang.(2025).Cold seeps are potential hotspots of deep-sea nitrogen loss driven by microorganisms across 21 phyla.NATURE COMMUNICATIONS,16(1),16. |
| MLA | Jiang, Qiuyun,et al."Cold seeps are potential hotspots of deep-sea nitrogen loss driven by microorganisms across 21 phyla".NATURE COMMUNICATIONS 16.1(2025):16. |
入库方式： OAI收割
来源：烟台海岸带研究所
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