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An assessment of environmental factors influencing acid tolerance and sensitivity in Escherichia coli, Salmonella spp. and other enterobacteria
Author(s) -
Rowbury R.J.
Publication year - 1995
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1995.tb01314.x
Subject(s) - rpos , escherichia coli , salmonella , enterobacteriaceae , microbiology and biotechnology , biology , aeration , bacteria , biochemistry , chemistry , ecology , genetics , gene , gene expression , promoter
Environmental factors such as temperature, pH and nutrient level affect enterobacterial acid sensitivity, as do the presence of phosphate and Na + and the extent of aeration. The mechanisms governing these effects are partially understood and the involvement of phoE, fur and atp in acid tolerance, of phoE, envZ, tonB , (p)ppGpp and cAMP in salt‐induced acid sensitivity and of rpoS in stationary‐phase acid tolerance are of particular interest. It should be noted that surface attachment enhances acid resistance.