title: Phylogenetic analysis of bacterial community composition in sediments with organic contaminants from the Jiaojiang estuary in China.
abstract: The aim of this study was to investigate the bacterial community composition, the concentration of organic contaminants, and their relationship in the sediments of Jiaojiang estuary. Sediments were collected from seven stations and the environmental parameters were analyzed. The results showed that the site closest to the chemical industry zone was the most polluted. Bacterial communities were determined using 16S rRNA clone libraries and phylogenetic analysis. These results revealed that there were 13 known bacterial phyla in the sediments and that Proteobacteria were the dominant group. Using these data, we assessed the correlation between bacterial communities and organic contaminants using cluster, multidimensional scaling, and redundancy analyses. These showed that there was no simple relationship between organic contaminants and bacterial community diversity in the sediments, but polycyclic aromatic hydrocarbons were more influential than the other pollutants and negatively affected Chloroflexi.
authors.affiliation: Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Jiang
authors.affiliation: Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China. Electronic address: jxwang@zjou.edu.cn.
authors.forename: Jian-Xin
authors.initials: JX
authors.lastname: Wang
authors.affiliation: Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station, Zhoushan 316021, China.
authors.forename: Bei
authors.initials: B
authors.lastname: Huang
authors.affiliation: Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China.
authors.forename: Kai-Cheng
authors.initials: KC
authors.lastname: Yu
authors.affiliation: Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China.
authors.forename: Pan
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China.
authors.forename: Jun-Wei
authors.initials: JW
authors.lastname: Zheng
authors.affiliation: Marine Microorganism Ecological & Application Lab, Zhejiang Ocean University, Zhoushan 316022, China. Electronic address: xuem07@163.com.
authors.forename: Xue-Zhu
authors.initials: XZ
authors.lastname: Liu
mesh_terms: D002681:China; D063366:Estuaries; D019015:Geologic Sediments / Q000737:chemistry / Q000382:microbiology*; D010802:Phylogeny; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D020560:Proteobacteria / Q000145:classification* / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012336:RNA, Ribosomal, 16S; D014874:Water Pollutants, Chemical
keywords: 16S rDNA; Bacterial community; Jiaojiang estuary; Organic contaminants; Polycyclic aromatic hydrocarbons