中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf

文献类型:期刊论文

作者Xu, Cong1,2,3; Zhang, Wenyan1,2,4; Pan, Hongmiao1,2,4; Du, Haijian1,2; Xiao, Tian1,2,4
刊名JOURNAL OF SOILS AND SEDIMENTS
出版日期2018-07-01
卷号18期号:7页码:2634-2646
ISSN号1439-0108
关键词Continental shelf Magnetotactic bacteria Nitrospirae Spatial distribution Sediment grain size Yellow Sea
DOI10.1007/s11368-018-1912-8
通讯作者Zhang, Wenyan(zhangwy@qdio.ac.cn) ; Xiao, Tian(txiao@qdio.ac.cn)
英文摘要Magnetotactic bacteria (MTB) are cosmopolitan and ubiquitous in sediments of freshwater and marine habitats. Most studies of marine MTB have concerned intertidal zones, and there have been few reports of MTB from seafloor sediments. The objective of this study was to investigate the diversity and spatial distribution of MTB on the continent shelf of the Yellow Sea. Sediments from the continental shelf were collected from the Yellow Sea in August 2015 (summer) and January 2016 (winter). Magnetotactic bacteria were enriched by a permanent magnet. The number of MTB was counted. The diversity of MTB was identified based on high-throughput sequencing and Silva database and nt/nr database. Environmental factors including bottom temperature and salinity, total carbon (TC), total nitrogen (TN), total sulfur (TS), total organic carbon (TOC), concentration of iron, and the sediment grain size were measured. Magnetotactic bacteria were distributed widely in the Yellow Sea, at abundances of 5-2400 ind./dm(3) in summer and 5-820 ind./dm(3) in winter. The dominant MTB at most sampling stations were cocci, although rod-shaped MTB dominated at one station (H17). High-throughput sequencing distinguished 2669 reads for putative MTB in summer and 3271 in winter, and these were classified into 72 operational taxonomic units (OTUs). In both summer and winter, most reads (> 74%) and OTUs (> 50%) of putative MTB belonged to the Nitrospirae. The MTB abundance was significantly correlated with sediment grain size. The MTB abundance was highest at station H17, where the sediment grain size was larger than at other stations. We present a systematic assessment of the spatial distribution and diversity of MTB in sediments of the continental shelf of the Yellow Sea. Our data suggest that diverse MTB are widely distributed in the seafloor sediment of the Yellow Sea, with Nitrospirae likely being the dominating group, and that the abundance of MTB are influenced by sediment grain size.
资助项目National Natural Science Foundation of China[41776131] ; National Natural Science Foundation of China[41330962] ; National Natural Science Foundation of China[41776130] ; National Natural Science Foundation of China-Shandong Joint Fund[U1606404] ; National Natural Science Foundation of China-Shandong Joint Fund[U1706208]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000434800400017
源URL[http://ir.qdio.ac.cn/handle/337002/157554]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Zhang, Wenyan; Xiao, Tian
作者单位1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Int Associated Lab Evolut & Dev Magnetotact Multi, CNRS, Qingdao, Peoples R China
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GB/T 7714
Xu, Cong,Zhang, Wenyan,Pan, Hongmiao,et al. Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf[J]. JOURNAL OF SOILS AND SEDIMENTS,2018,18(7):2634-2646.
APA Xu, Cong,Zhang, Wenyan,Pan, Hongmiao,Du, Haijian,&Xiao, Tian.(2018).Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf.JOURNAL OF SOILS AND SEDIMENTS,18(7),2634-2646.
MLA Xu, Cong,et al."Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf".JOURNAL OF SOILS AND SEDIMENTS 18.7(2018):2634-2646.

入库方式: OAI收割

来源:海洋研究所

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