西北太平洋沉积物中细菌多样性的研究

穆春华; 包振民; 陈刚; 郝鲁江; 祁自忠; 劳军; 李广雪; 胡景杰

西北太平洋沉积物中细菌多样性的研究

1.
中国海洋大学, 海洋生物遗传学与种质工程实验室, 山东, 青岛, 266003
2.
中国海洋大学, 海洋地球科学学院, 山东, 青岛, 266003

基金项目: 国家自然科学基金(30500377)

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出版历程
- 收稿日期: 2005-08-30
- 修回日期: 2005-12-28

Bacterial diversity in the sediments collected from the Northwest Pacific

1.
Laboratory of Marine Genetics and Breedings(MGB), Division of Life Science and Technology, Ocean University of China, Qingdao 266003, China
2.
College of Marine Geosciences, Ocean University of China, Qingdao 266003, China

摘要

摘要: 利用提取且纯化的西北太平洋地区深海沉积物DNA为模板,利用细菌通用PCR引物扩增16S rDNA片段,构建其文库,建立阳性克隆子RFLP(Restriction Fragment Length Polymorphism)酶切图谱.据酶切图谱选择部分克隆测序,并与数据库中的序列进行比对.结果表明,测序的27个序列分属于4个类群:变形细菌(Proteobacteria)、绿屈挠菌(Chloroflexi)、浮游霉菌(Planctomycetes)和酸杆菌(Acidobacteria);其中以变形细菌最多,占62.96%.
- 西北太平洋 /
- 深海沉积物 /
- 细菌 /
- 多样性
Abstract: Diversity of bacteria was studied in deep-sea sediments from the Northwest Pacific by PCR, RFLP and sequence analysis of 16S rDNA and comparing with the published sequences in GenBank database.Based on the RFLP profile generated, 77 clones from the 16 s rDNA library were divided into 27 types.Phylogenetic analysis showed that the 27 independent clones fell into four groups:Proteobacteria (62.96%), Chloroflexi (14.81%), Planctomycetes (14.81%) and Acidobacteria (7.41%).Among all sequenced clones, 6 were related to the sulfate metabolism bacteria and the results also demonstrated that some bacteria in deep-sea sediments had relation to matter energy circulation.
- the Northwest Pacific /
- sediments of deep-sea /
- bacteria /
- diversity

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