Transcriptional Response to Sulfur Limitation in Pelagibacter ubique

ABSTRACT: Candidatus Pelagibacter ubique is the most abundant marine microorganism, but is unable to utilize inorganic sulfur compounds that are plentiful in the ocean. To investigate how these cells adapt to organic sulfur limitation, batch cultures were grown in defined media containing either limiting or non-limiting amounts of dimethylsulfoniopropionate (DMSP) as the sole sulfur source. Protein and mRNA expression were measured during exponential growth, immediately prior to stationary phase, and in late stationary phase. Two distinct responses were observed: one as DMSP approached exhaustion, and another after the DMSP supply was depleted. The first response was characterized by increased transcription and translation of all Ca. P. ubique genes downstream of previously confirmed S-adenosyl meth

ORGANISM(S): Candidatus Pelagibacter ubique HTCC1062

SUBMITTER: Daniel Smith 

PROVIDER: E-GEOD-31630 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress