Listeria monocytogenes Sigma B, but not PrfA, shows strain specific contributions to growth under salt stress, and prolongated lag phase of a sigB null mutant across strains

ABSTRACT: Listeria monocytogenes is well known to have the ability to survive and grow under a variety of stress conditions. The ability to survive and grow under osmotic stress conditions in particular appears to be important for both growth in certain foods and food associated environments as well as for host infection. To characterize the contributions of transcriptional regulators important for stress response and virulence (i.e., Sigma B - M-OM-^CB and PrfA), we initially analyzed three L. monocytogenes parent strains and isogenic mutants ( delta sigB, delta prfA, and delta sigB delta prfA), representing different serotypes and lineages, for their ability to grow in BHI with 11% NaCl (1.9M) at 25M-BM-0C. No significant differences were observed in terms of growth between the parent strains and

ORGANISM(S): Listeria monocytogenes

SUBMITTER: Vinicius Ribeiro 

PROVIDER: E-GEOD-49056 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress