文献类型：期刊文献

英文题名：Toxicity responses of bacterial community as a biological indicator after repeated exposure to lead (Pb) in the presence of decabromodiphenyl ether (BDE209)

作者：Liu, Bo[1,2];Zhang, Rong[1];Xia, Xiaoqian[1];Zhang, Wei[1,3];Gao, Mengwen[4];Lu, Qiang[1];Lin, Kuangfei[1,3]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Sch Resource & Environm Engn, Shanghai 200237, Peoples R China;[2]Shanghai Pharmaceut Sch, Shanghai 200135, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[4]Baowu Grp Environm Resources Technol Co Ltd, Shanghai 200439, Peoples R China

年份：2018

卷号：25

期号：36

起止页码：36278

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：;EI(收录号：20242616313601);WOS:【SCI-EXPANDED(收录号:WOS:000452489500047)】；

基金：The research was supported by the National Natural Science Foundation of China (41877124, 21737005, 51708223) and the Science and Technology Committee Research Program of Shanghai (17DZ1202304, 18DZ1204403).

语种：英文

外文关键词：Pb; BDE209; Repeated exposure; Soil microorganism; Bacterial community

摘要：Continuous exposure of chemicals could cause various environmental impacts. Decabromodiphenyl ether (BDE209) and lead (Pb) can co-exist and are discharged simultaneously at e-waste recycling sites (EWRSs). Extensive concerns have been attracted by their toxic effects on soil microorganisms. Thus, by using high-throughput sequencing, this study explored bacterial community responses in a soil system after repeated Pb exposure in the presence of BDE209 in the laboratory during 90-day indoor incubation period. Gene sequencing of 16S rDNA performed on an Illumina MiSeq platform proved that one-off Pb exposure caused higher microbial abundance and community diversity. Additionally, both repetitive Pb treatment and exogenous BDE209 input could change bacterial community composition. Twenty-three different bacterial phyla were detected in the soil samples, while more than 90% of the sequences in each treatment belonged to a narrow variety. The sequence analyses elucidated that Proteobacteria, Acidobacteria, and Bacteroidetes were the top three dominant phyla. Our observations could provide a few insights into the ecological risks of Pb and BDE209 co-existed contamination in soils at EWRSs.