Variations of dominant microbial populations in groundwater in response to the leachate from Laogang Landfill

作     者：TIANYang-jie YANGHong LIDao-tang LINZhi-xin 

作者机构：SchoolofLifeScienceandBiotechnologyShanghaiJiaotongUniversityShanghai200240China 

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

年 卷 期：2005年第17卷第1期

页      面：106-109页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0815[工学-水利工程] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：TheNationalNaturalScienceFoundationofChina(No.20377030) 

主　　题：groundwater landfill 16S rRNA microbe redox process 

摘      要：Temporal changes of dominant microbial populations in groundwater in response to the leachate from Shanghai Laogang Landfill were investigated. Concentrations of dissolved redox relevant species in groundwater suggested that the dominating redox process had changed from denitrification to methane production/sulfate reduction due to landfilling. Dominant microbial populations were determined using restriction fragment length polymorphism(RFLP) analyses of 16S rRNA gene libraries, which were further studied by sequencing and phylogenetic analyses. The results indicated that obvious shifts of dominant microbial populations had occurred in groundwater in response to the pollution of leachate. The closest relatives of some dominant clones are accordant with the dominating redox processes determined by hydrochemical analyses, based on the GenBank s indications on the ability to perform redox reactions.