Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf

doi:10.1007/s11368-018-1912-8

	Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf
	Xu, Cong1,2,3 ; Zhang, Wenyan 1,2,4; Pan, Hongmiao 1,2,4; Du, Haijian1,2 ; Xiao, Tian 1,2,4
	2018-07-01
发表期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
卷号	18 期号:7 页码:2634-2646
通讯作者	Zhang, Wenyan([email protected]) ; Xiao, Tian([email protected])
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.
关键词	Continental shelf Magnetotactic bacteria Nitrospirae Spatial distribution Sediment grain size Yellow Sea
DOI	10.1007/s11368-018-1912-8
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41776131]###1971; National Natural Science Foundation of China[41330962]###1972; National Natural Science Foundation of China[41776130]###1973; National Natural Science Foundation of China-Shandong Joint Fund[U1606404]###864; National Natural Science Foundation of China-Shandong Joint Fund[U1706208]###1974; 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
WOS类目	Environmental Sciences ; Soil Science
WOS记录号	WOS:000434800400017
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/157554
专题	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
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 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.

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