Genomics of the proteorhodopsin-containing marine flavobacterium Dokdonia sp. strain MED134.

ABSTRACT: Proteorhodopsin phototrophy is expected to have considerable impact on the ecology and biogeochemical roles of marine bacteria. However, the genetic features contributing to the success of proteorhodopsin-containing bacteria remain largely unknown. We investigated the genome of Dokdonia sp. strain MED134 (Bacteroidetes) for features potentially explaining its ability to grow better in light than darkness. MED134 has a relatively high number of peptidases, suggesting that amino acids are the main carbon and nitrogen sources. In addition, MED134 shares with other environmental genomes a reduction in gene copies at the expense of important ones, like membrane transporters, which might be compensated by the presence of the proteorhodopsin gene. The genome analyses suggest Dokdonia sp. MED134 i

SUBMITTER: Gonzalez JM 

PROVIDER: S-EPMC3233072 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature