Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China

doi:10.1007/s00343-020-0127-1

	Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China
	Sun Qiqi 1,2,3; Song Jinming1,2,3,4 ; Li Xuegang 1,2,3,4; Yuan Huamao 1,2,3,4; Xing Jianwei1,2,3
	2021-01-19
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
页码	15
通讯作者	Song Jinming(jmsong@qdio.ac.cn)
摘要	Spatial variations of sediment microbes pose a great challenge for the estimation of anthropogenic influence on biogeochemical processes, yet remain very unclear in coastal ecosystems. Surface sediments in 9 stations from the eutrophic Jiaozhou Bay, China, were sampled, DNA was extracted within the sediments, and the 16S rDNA was sequenced with the Illumina Hiseq sequencing. Results reveal considerable heterogeneity of sediment bacteria in the Jiaozhou Bay, of which Proteobacteria and Bacteroidetes accounted for over 75%. Bacterial alpha-diversity indices decreased generally from the outside to the inner part of the bay and from the offshore to the nearshore area. Bacterial community structures of S3, S4, S7, and S8 clustered, those of S5, S13, and S14 grouped together, while those of S6 and S10 were distinct from each other and from those of the other stations. Major class Gammaproteobacteria were more abundant at the stations with mesoeutrophic to eutrophic levels (S4, S5, S8, and S10) and less abundant at oligotrophic stations (S6, S13, and S14), while Deltaproteobacteria had an opposite distribution pattern. Overall, bacterial community composition transitioned from being Xanthomonadales-dominant at S4 and S8 to being unidentifed_Gammaproteobacteria-dominant at S5, S6, S13, and S14, while in other stations there were comparable orders. The biogeochemical processes correspondingly changed from being nitrogen cycling-dominant at S4 and S8 to being sulfur cycling-dominant at S5, S6, S13, and S14. The bacterial distribution patterns were especially affected by the factors (dissolved organic phosphorus, DOP) in the overlying seawater due to the habitat status of P-insufficiency in the bay. Both orders Xanthomonadales and Alteromonadales could serve as bioindicators of anthropogenic pollution to different pollution types. At last, divergent distribution patterns of individual bacterial populations in the bay were revealed, the influential environmental gradients were clarified, and the uncertainty of microbes was reduced, helping to predict environmental functions in coastal areas.
关键词	Jiaozhou Bay bacterial community spatial variation sediments overlying water
DOI	10.1007/s00343-020-0127-1
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050501] ; Key Special Project of Marine Science and Technology Funds of Shandong Province[2018SDKJ0504-1] ; Key Special Project of Pilot National Laboratory for Marine Science and Technology (Qingdao)[2018SDKJ0504-1]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000608967800003
出版者	SCIENCE PRESS
引用统计	被引频次：4[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/337002/170036
专题	海洋生态与环境科学重点实验室
通讯作者	Song Jinming
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Sun Qiqi,Song Jinming,Li Xuegang,et al. Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:15.
APA	Sun Qiqi,Song Jinming,Li Xuegang,Yuan Huamao,&Xing Jianwei.(2021).Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,15.
MLA	Sun Qiqi,et al."Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):15.

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