Growth-phase dependent gene regulation in the alpha-proteobacterium Rhodobacter sphaeroides

ABSTRACT: Global transcriptome analyses at different stages of growth were applied to monitor growth phase-dependent gene expression in the alpha-proteobacterium Rhodobacter sphaeroides. Low aerated cultures with strong changes in levels of dissolved oxygen during growth, were compared to aerated cultures showing little variation in oxygen levels. Cells were in stationary phase for 12 h or for 57 h before dilution into fresh medium. The majority of genes (78-86%) were not differentially expressed across growth phases. Gene expression in outgrowth phase was strongly influenced by the length of the preceding stationary phase. After 57 h in stationary phase a much larger number of genes was induced after dilution, 39% of which are known to be controlled by the alternative sigma factors RpoHI and/or Rpo

ORGANISM(S): Rhodobacter sphaeroides 2.4.1

SUBMITTER: Gabriele Klug 

PROVIDER: E-GEOD-75345 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress