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题名: Dissolved organic carbon and relationship with bacterioplankton community composition in 3 lake regions of Lake Taihu, China
作者: Pang, Xinghong1, 2; Shen, Hong1; Niu, Yuan1, 3; Sun, Xiaoxue4; Chen, Jun1; Xie, Ping1
关键词: dissolved organic carbon (DOC) ; bacterioplankton community composition (BCC) ; denaturing gradient gel electrophoresis (DGGE) ; canonical correspondence analysis (CCA) ; Lake Taihu
刊名: CANADIAN JOURNAL OF MICROBIOLOGY
发表日期: 2014-10-01
DOI: 10.1139/cjm-2013-0847
卷: 60, 期:10, 页:669-680
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology
研究领域[WOS]: Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology
英文摘要: To clarify the relationships between dissolved organic carbon (DOC) and bacterioplankton community composition (BCC), a 1-year survey (June 2009 - May 2010) was conducted in 3 regions of Lake Taihu (Meiliang Bay, Lake Center, and Eastern Taihu), China. Polymerase chain reaction - denaturing gradient gel electrophoresis was used to analyze the composition and heterogeneity of the bacterioplankton community. Canonical correspondence analysis was used to explore the relationships between DOC concentration and BCC. We found a significant negative correlation between DOC concentration and bacterioplankton community diversity (as measured by the Shannon-Wiener index (H')). The results show that spatial variation in the bacterioplankton population was stronger than the seasonal variation and that DOC concentration influences BCC in Lake Taihu. DOC concentration, followed by macrophyte biomass, water turbidity, and phytoplankton biomass were the most influential factors that account for BCC changes in Lake Taihu. More detailed studies on the relationship between DOC concentration and BCC should focus on differences in DOC concentrations and quality among these lake regions. DOC had a significant impact on BCC in Meiliang Bay. The relationship between DOC and BCC in the 2 other regions studied (Lake Center and Eastern Taihu) was weaker. The results of this study add to our understanding of the BCC in eutrophic lakes, especially regarding the role of the microbial loop in lake ecosystems.
关键词[WOS]: GRADIENT GEL-ELECTROPHORESIS ; CANONICAL CORRESPONDENCE-ANALYSIS ; BACTERIAL COMMUNITIES ; SEASONAL DYNAMICS ; PELAGIC BACTERIA ; MICROBIAL LOOP ; EUTROPHIC LAKE ; SHALLOW LAKES ; RIBOSOMAL-RNA ; MATTER SOURCE
语种: 英语
WOS记录号: WOS:000343866400005
ISSN号: 0008-4166
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20300
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan, Hubei, Peoples R China
2.Huaihe River Water Resources Protect Bur, Inst Huai River Water Resources Protect, Bengbu, Anhui, Peoples R China
3.Chinese Res Inst Environm Sci, Res Ctr Lake Ecol & Environm, Beijing, Peoples R China
4.Huazhong Agr Univ, Coll Fishery, Wuhan, Hubei, Peoples R China
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