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Int J Food Microbiol. 2001 Dec 4;71(1):101-4.

Biosynthetic requirements for the repair of membrane damage in pressure-treated Escherichia coli.

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  • 1Department of Chemistry, University of Reading, UK.

Abstract

Cells of Escherichia coli that survived pressure treatment at 400 MPa showed increased sensitivity to sodium deoxycholate or sodium chloride in the plating medium, implying that homeostatic or barrier functions associated with outer and cytoplasmic membranes, respectively, were impaired. Repair of such sublethal membrane damage occurred when cells were incubated at 37 degrees C in tryptone soya broth. Inhibitor studies indicated that repair of cytoplasmic membrane damage was energy-dependent and required RNA and protein synthesis, whereas repair of outer membrane damage occurred with no requirement for energy or RNA or protein synthesis.

PMID:
11764887
[PubMed - indexed for MEDLINE]
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