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Résistance de Campylobacter coli au choc dû à la congélation/décongélation : rôles de la Fe superoxyde-dismutase et de la catalase.

Roles of Fe superoxide dismutase and catalase in resistance of Campylobacter coli to freeze-thaw stress.

Auteurs : STEAD D., PARK S. F.

Type d'article : Article

Résumé

The authors demonstrated that oxidative stress plays a role in freeze-thaw-induced killing of Campylobacter coli following analysis of mutants deficient in key antioxidant functions. Superoxide anions, but not H2O2, were formed during the freeze-thaw process. However, a failure to detoxify superoxide anions may lead to spontaneous disproportionation of the radicals to H2O2.

Détails

  • Titre original : Roles of Fe superoxide dismutase and catalase in resistance of Campylobacter coli to freeze-thaw stress.
  • Identifiant de la fiche : 2001-1388
  • Langues : Anglais
  • Source : Appl. environ. Microbiol. - vol. 66 - n. 7
  • Date d'édition : 07/2000

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