Surface attachment of Listeria monocytogenes is induced by sublethal concentrations of alcohol at low temperatures.
Sublethal concentrations of ethanol or isopropanol increased attachment of Listeria monocytogenes at 10, 20, or 30 degrees C; no induction occurred at 37 degrees C. The alcohol induction phenotype was retained in sigB and cesRK mutants; however, the degree of induction was affected. These results suggest that alcohol may contribute to the persistence of L. monocytogenes.
Gravesen
Anne
A
Department of Food Science, Centre of Advanced Food Studies, LMC, The Royal Veterinary and Agricultural University, Frederiksborg, Denmark. Anne.Gravesen@danisco.com
Lekkas
Charidimos
C
Knøchel
Susanne
S
D019840:2-Propanol / Q000494:pharmacology*; D001422:Bacterial Adhesion / Q000187:drug effects*; D001426:Bacterial Proteins / Q000235:genetics; D003080:Cold Temperature; D004305:Dose-Response Relationship, Drug; D000431:Ethanol / Q000494:pharmacology*; D015964:Gene Expression Regulation, Bacterial; D008089:Listeria monocytogenes / Q000187:drug effects / Q000235:genetics / Q000502:physiology*; D011494:Protein Kinases / Q000235:genetics; D012808:Sigma Factor / Q000235:genetics; D013696:Temperature; D014157:Transcription Factors / Q000235:genetics
D001426:Bacterial Proteins; C487493:CesR protein, Listeria monocytogenes; C079011:SigB protein, Bacteria; D012808:Sigma Factor; D014157:Transcription Factors; D000431:Ethanol; D011494:Protein Kinases; C487494:CesK protein, Listeria monocytogenes; D019840:2-Propanol