文献类型：期刊文献

英文题名：Ecotoxicological effects of decabromodiphenyl ether and cadmium contamination on soil microbes and enzymes

作者：Zhang, Wei[1,2,3];Zhang, Meng[1,2,3];An, Shuai[1,2,3];Xiong, Bang[1,2,3];Li, Hui[1,2,3];Cui, Changzheng[1,2,3];Lin, Kuangfei[1,2,3]

机构：[1]E China Univ Sci & Technol, Sch Resource & Environm Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：82

起止页码：71

外文期刊名：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000306616700010)】；

基金：This research was supported by projects of the National Natural Science Foundation of China (40901148, 40871223, 41003031), the Major State Basic Research Development Program of China (2011CB200904), the Scientific Project on Treatment and Control of Water Pollution (2012ZX07115), the National Forestry Public Welfare Science and Technology Research Program of China (201104088), and the Fundamental Research Funds for the Central Universities (WB0911011).

语种：英文

外文关键词：BDE209; Cd; Compound pollution; Culturable microbial population; Soil enzyme; Bacterial community

摘要：The ecotoxicological effects of decabromodiphenyl ether (BDE209) and cadmium (Cd) contamination on soil culturable microbial population, enzyme activity and bacterial community structure were investigated. Results of the indoor incubation test runs performed on many series of control and contaminated soil samples have demonstrated some notable toxic effects due to long term exposure to either or both contaminants. The two contaminants produced notable yet different toxic effects on the test microbes; the population of the exposed species generally declined according to certain dose-response relationships. The soil culturable microbial population and enzyme activity data show that the sensitivity to one or both contaminants followed the order of: bacteria > fungi > actinomycete and urease > saccharase, respectively. The interaction between BDE209 and Cd was dependent on both the exposure dose and time and that the joint toxic effects were synergistic, antagonistic or additive. The PCR-DGGE analysis data of species composition and richness suggest the synergistic combined effects on bacterial community structure during the 30 d exposure. Pseudomonas tuomuerensis strain CCM 7280 and Pseudomonas alcaliphila strain AL15-21 were enriched, indicating these species might be major functional populations and highly tolerant. Such observations have provided the useful information of potential ecotoxicological effects of BDE209 and Cd contamination in the environment. (C) 2012 Elsevier Inc. All rights reserved.