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题名: Re-evaluation of the diversity and distribution of diazotrophs in the South China Sea by pyrosequencing the nifH gene
作者: Xiao, Peng1; Jiang, Yongguang2; Liu, Yang1; Tan, Wenhua3; Li, Wenhua1; Li, Renhui1
关键词: biodiversity ; microorganism
刊名: MARINE AND FRESHWATER RESEARCH
发表日期: 2015
DOI: 10.1071/MF14134
卷: 66, 期:8, 页:681-691
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]: Fisheries ; Limnology ; Marine & Freshwater Biology ; Oceanography
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology ; Oceanography
英文摘要: Previous studies on the diversity and composition of nifH genes in the South China Sea (SCS) were mainly based on quantitative PCR and DNA clone methods. The pyrosequencing results of partial nifH gene fragments were used to study the spatiotemporal heterogeneity in composition and diversity of diazotrophs in the SCS. Seawater samples were collected throughout the upper ocean (<200-m depth) in different sites, as follows: the Pearl River Estuary; Taiwan and Luzon Straits (which are affected by the Kuroshio Current); a Trichodesmium bloom site; and two open ocean sites. Sample collection was conducted in four surveys from 2007 to 2010. A large dataset containing 217599 nifH reads from 27 samples was obtained. Putative diazotrophs in the SCS have reasonably low diversities, and the -proteobacteria and Trichodesmium were the two dominant nifH phylogenetic groups. No significant difference was observed among different regions and years. However, a significant difference existed among the samples obtained from different water depths. The results provide a broad and general view of the diversity and composition of the putative diazotrophs in the SCS.
关键词[WOS]: NORTH PACIFIC-OCEAN ; NITROGEN-FIXATION ; N-2 FIXATION ; BALTIC SEA ; RARE BIOSPHERE ; MICROBIAL COMMUNITIES ; TRICHODESMIUM BLOOM ; ATLANTIC-OCEAN ; DEEP-SEA ; EXPRESSION
语种: 英语
WOS记录号: WOS:000358734400003
ISSN号: 1323-1650
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/25965
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Shenzhen Univ, Coll Life Sci, Shenzhen Key Lab Marine Bioresource & Ecoenvironm, Shenzhen 518060, Peoples R China
3.Max Planck Inst Chem Ecol, Dept Bioorgan Chem, D-07745 Jena, Germany
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