| Diversity and Community Structure of Archaea in Deep Subsurface Sediments from the Tropical Western Pacific | |
Zhang, Wei; Saren, Gaowa; Li, Tiegang ; Yu, Xinke; Zhang, Linbao
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| 2010-06-01 | |
| 发表期刊 | CURRENT MICROBIOLOGY
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| 卷号 | 60期号:6页码:439-445 |
| 文章类型 | Article |
| 摘要 | Archaeal 16S rRNA gene clone libraries using PCR amplicons from eight different layers of the MD06-3051 core were obtained from the tropical Western Pacific sediments. A total of 768 clones were randomly selected, and 264 representative clones were sequenced by restriction fragment length polymorphism. Finally, 719 valid clones and 104 operational taxonomic units were identified after chimera-check and a parts per thousand yen97% similarity analysis. The phylogenetic analysis of 16S rDNA sequences obtained from sediment samples were very diverse and showed stratification with depth. Majority of the members were most closely related to uncultivated groups and physiologically uncharacterized assemblages. All phylotypes were affiliated with Crenarchaeota (76%) and Euryarchaeota (24%), respectively. Deep-sea archaeal group (DSAG, 41% of total clones) and miscellaneous crenarchaeotic group (MCG, 29% of total clones) belonging to Crenarchaeota were the most predominant archaeal 16S rDNA phylotypes in clone libraries. Phylotypes in this study shared high similarity with those in subsurface sediments from Peru Margin sites, which indicated that different geographical zones might host similar members of archaeal populations based on similar sedimentary environments. In our study, members of DSAG and MCG seemed to dominate certain layers of the nonhydrate sediments, suggesting a wide ecophysiological adaptation than previously appreciated. The spatial distribution and community structure of these groups might vary with the different geochemical gradients of the environment. |
| DOI | 10.1007/s00284-009-9562-0 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277004600008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/32781 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Wei,Saren, Gaowa,Li, Tiegang,et al. Diversity and Community Structure of Archaea in Deep Subsurface Sediments from the Tropical Western Pacific[J]. CURRENT MICROBIOLOGY,2010,60(6):439-445. |
| APA | Zhang, Wei,Saren, Gaowa,Li, Tiegang,Yu, Xinke,&Zhang, Linbao.(2010).Diversity and Community Structure of Archaea in Deep Subsurface Sediments from the Tropical Western Pacific.CURRENT MICROBIOLOGY,60(6),439-445. |
| MLA | Zhang, Wei,et al."Diversity and Community Structure of Archaea in Deep Subsurface Sediments from the Tropical Western Pacific".CURRENT MICROBIOLOGY 60.6(2010):439-445. |
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| Diversity and Commun（308KB） | 期刊论文 | 出版稿 | 限制开放 | ODC PDDL | 浏览 | |
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