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| Joint effects of galaxolide and cadmium on soil microbial community function and abundance |
| Received:September 02, 2016 |
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| KeyWord:galaxolide(HHCB);cadmium;combined pollution;soil microbial community;function and abundance |
| Author Name | Affiliation | E-mail | | LÜ Ze | School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China | | | HU Xiao-min | School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China | hxmin_jj@163.com | | AN Jing | Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China | | | WEI Wei | School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China | |
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| Abstract: |
| In order to investigate the joint effects of galaxolide and cadmium on soil microbial community,soil microbial community function and abundance were studied by Biolog and qPCR methods in this paper. Results showed that the ability of utilizing carbon sources in soil microorganisms has been improved under HHCB and HHCB-Cd combined pollution, and the utilization efficiency of esters was the highest, while sugars and acids have lower utilization efficiency compared with others 6 kinds of carbon sources. There was no significant change in Shannon, Simpson and McIntosh indexes under HHCB pollution. While the indexes have significantly increased under the 500 and 1000 mg·kg-1 HHCB-Cd combined pollution.The species richness and the dominant population were significantly promoted, and the homogeneity of the population was broken after HHCB addition in the combined pollution soil. It significantly promoted the growth of bacteria under 500 and 1000 mg·kg-1 HHCB-Cd combined pollution,respectively. While HHCB has significantly inhibited the growth of actinomycetes. The abundance of bacteria was increased as the increasing of HHCB concentrations. However, the abundance of fungi and actinomycetes were decreased as the increasing of HHCB concentrations. In this study, actinomycetes were more sensitive than bacteria and fungi to the joint effects of HHCB and Cd. |
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