Spatial isolation and environmental factors drive distinct bacterial and archaeal communities in different types of petroleum reservoirs in China.

ABSTRACT: To investigate the spatial distribution of microbial communities and their drivers in petroleum reservoir environments, we performed pyrosequencing of microbial partial 16S rRNA, derived from 20 geographically separated water-flooding reservoirs, and two reservoirs that had not been flooded, in China. The results indicated that distinct underground microbial communities inhabited the different reservoirs. Compared with the bacteria, archaeal alpha-diversity was not strongly correlated with the environmental variables. The variation of the bacterial and archaeal community compositions was affected synthetically, by the mining patterns, spatial isolation, reservoir temperature, salinity and pH of the formation brine. The environmental factors explained 64.22% and 78.26% of the total variance

SUBMITTER: Gao P 

PROVIDER: S-EPMC4738313 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature