Effect of mesoscale eddies on diazotroph community structure and nitrogen fixation rates in the South China Sea
文献类型：期刊论文
| 作者 | Liu, Jiaxing5; Zhou, Linbin5; Li, Jiajun2; Lin, Yuyang3; Ke, Zhixin5; Zhao, Chunyu1; Liu, Huajian1; Jiang, Xin1; He, Yinghui4; Tan, Yehui1,5 |
| 刊名 | REGIONAL STUDIES IN MARINE SCIENCE
 |
| 出版日期 | 2020 |
| 卷号 | 35页码:101106 |
| 关键词 | Trichodesmium Unicellular nitrogen-fixing cyanobacteria nifH Mesoscale eddy Nitrogen fixation South China Sea |
| ISSN号 | 2352-4855 |
| DOI | 10.1016/j.rsma.2020.101106 |
| 英文摘要 | Mesoscale eddies play a key role in ocean biogeochemistry, yet their effects on dinitrogen (N-2) fixation are not well understood. Using quantitative polymerase chain reaction (qPCR) and dinitrogen-15 (N-15(2)) tracer methods, we examined the abundance of nifH genes in N-2 -fixing microorganisms and N-2 fixation rates in the upper water column (0-100 m) of mesoscale eddies in the northeastern South China Sea (SCS). High N-2 fixation rates affected by an anticyclonic eddy were associated with high abundances of unicellular nitrogen-fixing cyanobacteria in groups A and B (UCYN-A, UCYN-B), while low nitrogen fixation was found in both cyclonic eddy and reference stations. The estimated N-2 fixation rates met 9% +/- 5% of the nitrogen demand for primary production affected by the anticyclonic eddy. Our results indicate that mesoscale eddies can affect nitrogen fixation through affecting nutrient availability and eddy transport, and play a crucial role in regulating N-2 fixation in the oligotrophic SCS. (C) 2020 Elsevier B.V. All rights reserved. |
| 资助机构 | Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory, China (Guangzhou) [GML2019ZD0401]; Guangdong marine economy promotion projects Fund, China [GDOE[2019]A32]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41806198, 31971432]; Science and Technology Planning Project of Guangdong Province, China [2017B030314052]; Guangdong Basic and Applied Basic Research Foundation [2019A1515010896]; Fund of Key Laboratory of Open-Sea Fishery Development, China [LOF 2018-04]; Ministry of Agriculture and Rural Affairs, P. R. China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory, China (Guangzhou) [GML2019ZD0401]; Guangdong marine economy promotion projects Fund, China [GDOE[2019]A32]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41806198, 31971432]; Science and Technology Planning Project of Guangdong Province, China [2017B030314052]; Guangdong Basic and Applied Basic Research Foundation [2019A1515010896]; Fund of Key Laboratory of Open-Sea Fishery Development, China [LOF 2018-04]; Ministry of Agriculture and Rural Affairs, P. R. China |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18486]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 4.Univ Queensland, Sci Fac, Sch Earth & Environm Sci, Brisbane, Qld 4072, Australia 5.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab South China Sea Fishery Resources Exploit, Minist Agr, Guangzhou 510300, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jiaxing,Zhou, Linbin,Li, Jiajun,et al. Effect of mesoscale eddies on diazotroph community structure and nitrogen fixation rates in the South China Sea[J]. REGIONAL STUDIES IN MARINE SCIENCE,2020,35:101106. |
| APA | Liu, Jiaxing.,Zhou, Linbin.,Li, Jiajun.,Lin, Yuyang.,Ke, Zhixin.,...&Tan, Yehui.(2020).Effect of mesoscale eddies on diazotroph community structure and nitrogen fixation rates in the South China Sea.REGIONAL STUDIES IN MARINE SCIENCE,35,101106. |
| MLA | Liu, Jiaxing,et al."Effect of mesoscale eddies on diazotroph community structure and nitrogen fixation rates in the South China Sea".REGIONAL STUDIES IN MARINE SCIENCE 35(2020):101106. |
入库方式： OAI收割
来源：南海海洋研究所
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