Systematic characterization of sediment microbial community structure and function associated with anaerobic microbial degradation of PBDEs in coastal wetland

被引：3

作者：

Wang, Xu ^{[1
]}

Wang, Guoguang ^{[1
]}

Li, Chuanyuan ^{[1
]}

Liu, Yu ^{[1
]}

Jiang, Na ^{[1
]}

Dong, Xu ^{[1
]}

Wang, Haixia ^{[2
]}

机构：

[1] Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Peoples R China

[2] Dalian Maritime Univ, Nav Coll, 1 Linghai Rd, Dalian 116026, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2023年 / 188卷

基金：

中国国家自然科学基金;

关键词：

Polybrominated diphenyl ethers; Anaerobic micro-degradation; Microbial community structure; Microbial community function; Coastal wetland sediments; POLYBROMINATED DIPHENYL ETHERS; REDUCTIVE DEBROMINATION; BDE-47; PROFILES; BDE-153; RIVERS; RISK;

D O I：

10.1016/j.marpolbul.2023.114622

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

As the widely used flame retardant, polybrominated diphenyl ethers (PBDEs) have been ubiquitously detected in wetland sediments. Microbial degradation is the importantly natural attenuation process for PBDEs in sediments. In this study, the microbial degradation of PBDEs and inherent alternation of microbial communities were explored in anaerobic sediments from coastal wetland, North China. BDE-47 and BDE-153 could be degraded by the indigenous microbes, with biodegradation following pseudo-first-order kinetic. In sediments, the major genera for BDE-47 and BDE-153 degradation were Paeisporosarcina and Gp7, respectively, in single exposure. However, Marinobacter was dominant genera in the combined exposure to BDE-47 and BDE-153, and competi-tion against Marinobacter existed between BDE-47 and BDE-153 degradation. Analysis of bacterial metabolic function indicated that membrane transport, amino acid and carbohydrate metabolism were included in degradation. This study provides the systematic characterization of the sediment microbial community structure and function associated anaerobic microbial degradation of PBDEs in coastal wetland.

引用

页数：14