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      Bacterial community structure in the intertidal biofilm along the Yangtze Estuary, China.

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          Abstract

          In this study, the 16S rRNA-based Illumina MiSeq sequencing was used to investigate the bacterial community structure and composition of intertidal biofilm taken along the Yangtze Estuary. The results showed that 680,721 valid sequences of seven samples were assigned to 147,239 operational taxonomic units, which belonged to 49 phyla, 246 family and 314 genera. Compared to other studies on water and sediments in the study area, biofilms showed highest index of bacterial diversity and abundances. At different taxonomic levels, both dominant taxa and their abundances varied among the seven samples, with Proteobacteria as the dominant phylum in general. Principal component analysis and cluster analysis revealed that bacterial communities at WSK differed from those at other sampling sites. Salinity, dissolved oxygen, pH and nutrients were the vital environmental factors to influence the bacterial community structure of biofilms. These results may provide a new insight into the microbial ecology in estuarine environments.

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          Author and article information

          Journal
          Mar. Pollut. Bull.
          Marine pollution bulletin
          Elsevier BV
          1879-3363
          0025-326X
          Nov 15 2017
          : 124
          : 1
          Affiliations
          [1 ] Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
          [2 ] Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China. Electronic address: yyang@geo.ecnu.edu.cn.
          Article
          S0025-326X(17)30643-4
          10.1016/j.marpolbul.2017.07.051
          28755810

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