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Distribution and co-occurrence networks of the bacterial community in sediment cores from the subtropical Daya Bay, China

文献类型： 外文期刊

作者： Wu, Peng 1 ; Liu, Yong 1 ; Li, Chunhou 1 ; Zheng, Qiushi 1 ; Hong, Yiguo 6 ; Wu, Jiapeng 6 ; Xu, Shannan 1 ; Lin, Lin 1 ; Xiao, Yayuan 1 ; Wang, Teng 1 ; Liu, Yu 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab South China Sea Fishery Resources Exploita, Minist Agr & Rural Affairs, Guangzhou 510300, Peoples R China

2.Sci Observat & Res Stn Pearl River Estuary Ecosyst, Guangzhou 510300, Peoples R China

3.Sanya Trop Fisheries Res Inst, Key Lab Efficient Utilizat & Proc Marine Fishery R, Observat & Res Stn Xisha Isl Reef Fishery Ecosyst, Sanya 572018, Hainan, Peoples R China

4.Guangdong Prov Key Lab Fishery Ecol Environm, Guangzhou 510300, Peoples R China

5.Natl Agr Expt Stn Fishery Resources & Environm Dap, Shenzhen, Peoples R China

6.Guangzhou Univ, Inst Environm Res Greater Bay Area, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China

关键词： Bacterial composition; High-throughput sequencing; Sediment core; Anthropogenic activity; Daya bay

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.8； 五年影响因子：6.5 ）

ISSN： 0025-326X

年卷期： 2023 年 196 卷

页码：

收录情况： SCI

摘要： The bacterial community plays an important role in biogeochemical cycles in marine sediment. However, little is known about the vertical profiles and co-occurrence patterns of bacterial community in sediment cores from the marine environment. In this study, five sediment cores were taken from a subtropical bay in China, heavily impacted by anthropogenic activities. The bacterial composition in sediment cores was investigated by using high-throughput sequencing of the 16S rRNA gene. A principal coordinates analysis and an adonis analysis of the operational taxonomic unit (OTU) compositions showed that spatial variation, rather than vertical variation, determined the bacterial structure in sediment cores. The bacterial complexity varied greatly across the five sediment cores, and the rare taxa played an important role in supporting the stability of the bacterial network. This study revealed that sediment properties and anthropogenic activities may induce a shift in the bacterial composition in sediment cores of a subtropical bay.

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