期刊
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE B
卷 10, 期 12, 页码 890-901出版社
ZHEJIANG UNIV
DOI: 10.1631/jzus.B0920181
关键词
16S rRNA; Library; Diversity; South China Sea
类别
资金
- Open Fund of the Key Laboratory of Marine Geology and Environment, China Academy of Sciences [MGE2008KG05]
- National Basic Research Program (973) of China [2004CB719604-3]
- High-Tech Research and Development (863) of China [2007AA021305]
Microbial diversity of sediments from the northern slope of the South China Sea was studied by constructing bacterial and archaeal 16S rRNA gene clone libraries. Fourteen bacterial phylogenetic groups were detected, including Gammaproteobacteria, Deltaproteobacteria, Planctomycetes, Alphaproteobacteria, Firmicutes, Bacteroidetes, Actinobacteria, Chloroflexi, Acidobacteria, Betaproteobacteria, Nitrospirae, candidate divisions OP8 and OP11, and an unknown group. Gammaproteobacteria was the predominant group in bacterial libraries with the percentage ranging from 31.8% to 63.2%. However, archaeal libraries had relatively lower diversity, with most clones belonging to marine archaeal group I uncultured Crenarchaeota. In addition, two novel euryarchaeal clones were detected not to match any culture-dependent or -independent isolates. Compared with other gas hydrate-rich ecosystems and different areas of the South China Sea, a distinct microbial community was revealed in this study.
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