Metabolic and Phylogenetic Profile of Bacterial Community in Guishan Coastal Water (Pearl River Estuary), South China Sea
文献类型: 外文期刊
作者: Hu Xiaojuan 1 ; Liu Qing 1 ; Li Zhuojia 2 ; He Zhili 3 ; Gong Yingxue 5 ; Cao Yucheng 2 ; Yang Yufeng 1 ;
作者机构: 1.Jinan Univ, Inst Hydrobiol, Coll Life Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Inst, Guangzhou 510300, Guangdong, Peoples R China
3.Univ Oklahoma, Inst Environm Genom, Norman, OK 73019 USA
4.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
5.Jinan Univ, Coll Life Sci & Technol, Inst Life & Hlth Engn, Res Ctr Mol Biol, Guangzhou 510632, Guangdong, Peoples R China
6.Educ Dept Guangdong Prov, Key Lab Eutrophicat & Red Tide Prevent, Guangzhou 510632, Guangdong, Peoples R China
关键词: Microbial community;environmental factor;mariculture;CLPP;DGGE
期刊名称:JOURNAL OF OCEAN UNIVERSITY OF CHINA ( 影响因子:0.913; 五年影响因子:1.012 )
ISSN: 1672-5182
年卷期: 2014 年 13 卷 5 期
页码:
收录情况: SCI
摘要: Characteristics of a microbial community are important as they indicate the status of aquatic ecosystems. In the present study, the metabolic and phylogenetic profile of the bacterioplankton community in Guishan coastal water (Pearl River Estuary), South China Sea, at 12 sites (S1-S12) were explored by community-level physiological profiling (CLPP) with BIOLOG Eco-plate and denaturing gradient gel electrophoresis (DGGE). Our results showed that the core mariculture area (S6, S7 and S8) and the sites associating with human activity and sewage discharge (S11 and S12) had higher microbial metabolic capability and bacterial community diversity than others (S1-5, S9-10). Especially, the diversity index of S11 and S12 calculated from both CLPP and DGGE data (H > 3.2) was higher than that of others as sewage discharge may increase water nitrogen and phosphorus nutrient. The bacterial community structure of S6, S8, S11 and S12 was greatly influenced by total phosphorous, salinity and total nitrogen. Based on DGGE fingerprinting, proteobacteria, especially gamma-and alpha-proteobacteria, were found dominant at all sites. In conclusion, the aquaculture area and wharf had high microbial metabolic capability. The structure and composition of bacterial community were closely related to the level of phosphorus, salinity and nitrogen.
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