Multiple genome sequences reveal adaptations of a phototrophic bacterium to sediment microenvironments.

ABSTRACT: The bacterial genus Rhodopseudomonas is comprised of photosynthetic bacteria found widely distributed in aquatic sediments. Members of the genus catalyze hydrogen gas production, carbon dioxide sequestration, and biomass turnover. The genome sequence of Rhodopseudomonas palustris CGA009 revealed a surprising richness of metabolic versatility that would seem to explain its ability to live in a heterogeneous environment like sediment. However, there is considerable genotypic diversity among Rhodopseudomonas isolates. Here we report the complete genome sequences of four additional members of the genus isolated from a restricted geographical area. The sequences confirm that the isolates belong to a coherent taxonomic unit, but they also have significant differences. Whole genome alignments sho

SUBMITTER: Oda Y 

PROVIDER: S-EPMC2587559 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature