Bacterial diversity in sediments of core MD05-2902 from the Xisha Trough, the South China Sea

Li Tao; Wang Peng

doi:10.1007/s13131-014-0543-1

南海西沙海槽沉积物柱MD05-2902细菌多样性

doi: 10.1007/s13131-014-0543-1

李涛¹,
王鹏^2,

1.
同济大学海洋地质国家重点实验室, 上海200092, 中国;广州海洋地质调查局, 广州510760, 中国
2.
同济大学海洋地质国家重点实验室, 上海200092, 中国

基金项目: The Key Project of China National Programs for Fundamental Research and Development under contract No. 2007CB815904; the National Natural Science Foundation of China under contract No. 41276125; the South China Sea-Deep Program of the National Science Foundation of China under contract No. 91028005; the State Key Laboratory of Marine Geology, Tongji University under contract No. MGK 120202.

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- 收稿日期: 2014-06-06
- 修回日期: 2013-10-01

Bacterial diversity in sediments of core MD05-2902 from the Xisha Trough, the South China Sea

Li Tao¹,
Wang Peng^2
,

1.
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China;Guangzhou Marine Geological Survey, Guangzhou 510760, China
2.
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

摘要

摘要: 对采自西沙海槽深海盆地一沉积物柱MD05-2902中的细菌多样性和垂向分布特征进行研究。利用细菌16S rRNA基因对沉积物柱中的10个微生物样品（1m等间距采样）进行系统发育分析。16S rDNA系列分别来自18个细菌类群，以JS1、浮霉菌（Planctomycetes）和屈桡杆菌（Chloroflexi）为优势类群。这三个类群分别占全部序列的30.6%、16.6%和15.6%。使用多维尺度分析方法（nonmetric multidimensional scaling analysis）揭示微生物群落与环境因子之间的关系，结果表明δ¹⁵N、δ¹³C、总有机碳和总有机氮可能影响了细菌群落结构。该研究有助于了解西沙海槽沉积物中的生物地球化学循环。
- 西沙海槽 /
- 细菌多样性 /
- 16SrRNA基因
Abstract: A sediment core MD05-2902 was collected from the deep-sea basin of the Xisha Trough. The vertical distribution and diversity of bacteria in the core was investigated through ten sub-sampling with an interval of 1 m using bacterial 16S rRNA gene as a phylogenetic bio-marker. Eighteen phylogenetic groups were identified from 16S rRNA gene clone libraries. The dominant bacterial groups were JS1, Planctomycetes and Chloroflexi, which accounted for 30.6%, 16.6%, and 15.6% of bacterial clones in the libraries, respectively. In order to reveal the relationship between biotic and abiotic data, a nonmetric multidimensional scaling analysis was performed. The result revealed that the δ¹⁵N, δ¹³C, total organic carbon and total organic nitrogen possibly influenced the bacterial community structure. This study expanded our knowledge of the biogeochemical cycling in the Xisha Trough sediment.
- Xisha Trough /
- bacterial diversity /
- 16S rRNA gene

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参考文献(36)

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南海西沙海槽沉积物柱MD05-2902细菌多样性

doi: 10.1007/s13131-014-0543-1

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Bacterial diversity in sediments of core MD05-2902 from the Xisha Trough, the South China Sea

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