Response of soil microbial community to exposure of environmental pollutants

土壤微生物群落在化学污染物的生物修复中起着非常重要的作用。为了研究该群落对污染物的响应和降解情况，通过对该群落进行宏基因组测序，并结合能够降解污染物的基因和菌株的分离和表征，对人工污染和封闭土壤系统中的该群落进行了时间序列分析。我们的分析有力地提示了参与污染土壤生物修复的关键分解代谢基因及其宿主属。

Soil microbial communities play very important role in the bioremediation of chemical pollutants. To investigate how such a community responded to and degrade the pollutants, time series analysis of the community in an artificially polluted and closed soil system was carried out by metagenomic sequencing of the community in conjunction with the isolation and characterization of the genes and bacterial strains able to degrade the pollutants. Our analysis strongly suggested the crucial catabolic genes and their host genera involved in the bioremediation in the polluted soil.