Species Divergence vs. Functional Convergence Characterizes Crude Oil Microbial Community Assembly.

ABSTRACT: Oil reservoirs exhibit extreme environmental conditions such as high salinity and high temperature. Insights into microbial community assemblages in oil reservoirs and their functional potentials are important for understanding biogeochemical cycles in the subterranean biosphere. In this study, we performed shotgun metagenomic sequencing of crude oil samples from two geographically distant oil reservoirs in China, and compared them with all the 948 available environmental metagenomes deposited in IMG database (until October 2013). Although the dominant bacteria and the proportion of hydrogenotrophic and acetoclastic methanogens were different among oil metagenomes, compared with the metagenomes from other environments, all the oil metagenomes contained higher abundances of genes involved i

SUBMITTER: Nie Y 

PROVIDER: S-EPMC4981601 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature