Open AccessRapid, Transient, and Proportional Activation of σ B in Response to Osmotic Stress in Listeria monocytogenes
Author(s) -
Marta Utratna,
Iain Shaw,
Emily Starr,
Conor O’Byrne
Publication year - 2011
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.05732-11
Subject(s) - listeria monocytogenes , osmotic shock , osmotic concentration , transient response , osmotic pressure , transient (computer programming) , sigma factor , microbiology and biotechnology , biology , stress (linguistics) , chemistry , gene , gene expression , bacteria , genetics , biochemistry , computer science , promoter , electrical engineering , engineering , operating system , linguistics , philosophy
The osmotic activation of sigma B (σB ) inListeria monocytogenes was studied by monitoring expression of four known σB -dependent genes,opuCA ,lmo2230 ,lmo2085 , andsigB . Activation was found to be rapid, transient, and proportional to the magnitude of the osmotic stress applied, features that underpin the adaptability of this pathogen.