Variation in resistance to high hydrostatic pressure and rpoS heterogeneity in natural isolates of Escherichia coli O157:H7.
作者： Marianne Robey , Amparo Benito , Roger H. Hutson , Cristina Pascual , Simon F. Park
DOI: 10.1128/AEM.67.10.4901-4907.2001
关键词: Hydrostatic pressure 、 Sigma factor 、 Genetics 、 Shiga-like toxin 、 Bacteria 、 Biology 、 Microbiology 、 Strain (chemistry) 、 Enterobacteriaceae 、 Escherichia coli 、 rpoS
摘要: Several natural isolates of Escherichia coli O157:H7 have previously been shown to exhibit stationary-phase-dependent variation in their resistance inactivation by high hydrostatic pressure. In this report we demonstrate that loss the stationary-phase-inducible sigma factor RpoS resulted decreased pressure E. and a commensal strain. Furthermore, activity correlated with those strains. Heterogeneity was noted rpoS alleles may explain differences activity. These results are consistent role for mediating O157:H7.
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