Effect of pyrene on denitrification activity and abundance and composition of denitrifying community in an agricultural soil
文献类型：期刊论文
| 作者 | Guo, Guang-Xia ; Deng, Huan ; Qiao, Min ; Mu, Yu-Jing ; Zhu, Yong-Guan |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 159期号:7页码:1886—1895 |
| 中文摘要 | Toxicity of pyrene on the denitrifiers was studied by spiking an agricultural soil with pyrene to a series of concentrations (0-500 mg kg(-1)) followed by dose response and dynamic incubation experiments. Results showed a positive correlation between potential denitrification activity and copy numbers of denitrifying functional genes (nirK, nirS and nosZ), and were both negatively correlated with pyrene concentrations. Based on the comparison of EC(50) values, denitrifiers harboring nirK, nirS or nosZ gene were more sensitive than denitrification activity, and denitrifiers harboring nirS gene were more sensitive than that harboring nirK or nosZ genes. Seven days after spiking with EC(50) concentration of pyrene, denitrifiers diversity decreased and community composition changed in comparison with the control. Phylogenetic analyses of three genes showed that the addition of pyrene increased the proportion of Bradyrhizobiaceae, Rhodospirillales, Burkholderiales and Pseudomonadales. Some species belonging to these groups were reported to be able to degrade PAHs. (C) 2011 Elsevier Ltd. All rights reserved. |
| 公开日期 | 2012-10-16 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7030]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Guo, Guang-Xia,Deng, Huan,Qiao, Min,et al. Effect of pyrene on denitrification activity and abundance and composition of denitrifying community in an agricultural soil[J]. ENVIRONMENTAL POLLUTION,2011,159(7):1886—1895. |
| APA | Guo, Guang-Xia,Deng, Huan,Qiao, Min,Mu, Yu-Jing,&Zhu, Yong-Guan.(2011).Effect of pyrene on denitrification activity and abundance and composition of denitrifying community in an agricultural soil.ENVIRONMENTAL POLLUTION,159(7),1886—1895. |
| MLA | Guo, Guang-Xia,et al."Effect of pyrene on denitrification activity and abundance and composition of denitrifying community in an agricultural soil".ENVIRONMENTAL POLLUTION 159.7(2011):1886—1895. |
入库方式： OAI收割
来源：生态环境研究中心
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