Microbial community changes in aquifer sediment microcosm for anaerobic anthracene biodegradation under methanogenic condition

作     者：Rui Wan Shuying Zhang Shuguang Xie 

作者机构：College of Environmental Sciences and Engineeringthe Key Laboratory of Water and Sediment Sciences(Ministry of Education)Peking UniversityBeijing 100871China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2012年第24卷第8期

页      面：1498-1503页

核心收录：

学科分类：082803[工学-农业生物环境与能源工程] 07[理学] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境] 0804[工学-仪器科学与技术] 0713[理学-生态学] 

基　　金：supported by the National Natural Science Foundation of China (No. 50979002) the State Key Laboratory of Ecohydraulic Engineering in Shaanxi 

主　　题：polvcvclic aromatic hydrocarbons (PAHs) oundwater sediment biodegradation microbial community Archaea 

摘      要：The widespread distribution of polycyclic aromatic hydrocarbons （PAHs） in groundwater has become an important environmental issue. Knowledge of microbial community changes could aid in identification of particular microorganisms that are capable of degrading PAHs in contaminated aquifers. Therefore, 16S rRNA gene clone library analysis was used to identify the archaeal and bacterial communities in an aquifer sediment microcosm used for anaerobic anthracene degradation under methanogenic conditions. A remarkable shift of the archaeal community structure occurred after anaerobic anthracene degradation, but the types of the abundant bacterial phyla did not change. However, a decrease of both archaeal and bacterial diversity was observed. Bacterial genera Bacillus, Rhodococcus and Herbaspirillum might have links with anaerobic anthracene degradation, suggesting a role of microbial consortia. This work might add some new information for understanding the mechanism of PAH degradation under methanogenic conditions.