Transcriptional response of the photoheterotrophic marine bacterium Dinoroseobacter shibae to changing light regimes.

ABSTRACT: Bacterial aerobic anoxygenic photosynthesis (AAP) is an important mechanism of energy generation in aquatic habitats, accounting for up to 5% of the surface ocean's photosynthetic electron transport. We used Dinoroseobacter shibae, a representative of the globally abundant marine Roseobacter clade, as a model organism to study the transcriptional response of a photoheterotrophic bacterium to changing light regimes. Continuous cultivation of D. shibae in a chemostat in combination with time series microarray analysis was used in order to identify gene-regulatory patterns after switching from dark to light and vice versa. The change from heterotrophic growth in the dark to photoheterotrophic growth in the light was accompanied by a strong but transient activation of a broad stress response t

SUBMITTER: Tomasch J 

PROVIDER: S-EPMC3223308 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature