rpoS regulation of acid, heat, and salt tolerance in Escherichia coli O157:H7.
An rpoS mutant (rpoS::pRR10) of Escherichia coli O157:H7 ATCC 43895 was generated. Stationary-phase acid, heat, and salt tolerance was significantly reduced, and starvation-induced acid tolerance did not develop in the mutant. RpoS was also important for survival of E. coli O157:H7 in dry, fermented sausage.
Cheville
A M
AM
Department of Food Microbiology and Toxicology, University of Wisconsin, Madison 53706-1187, USA.
Arnold
K W
KW
Buchrieser
C
C
Cheng
C M
CM
Kaspar
C W
CW
D000143:Acids / Q000378:metabolism*; D001426:Bacterial Proteins / Q000502:physiology*; D004926:Escherichia coli / Q000502:physiology*; D006358:Hot Temperature; D012492:Salts / Q000378:metabolism*; D012808:Sigma Factor / Q000502:physiology*
D000143:Acids; D001426:Bacterial Proteins; D012492:Salts; D012808:Sigma Factor; C069567:sigma factor KatF protein, Bacteria