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Effet des basses températures sur la croissance, la structure et le métabolisme du Campylobacter coli SP10.

Effect of low temperatures on growth, structure and metabolism of Campylobacter coli SP10.

Auteurs : HOELLER C., WITTHUHN D., JANZEN-BLUNCK B.

Type d'article : Article

Résumé

The authors found that C. coli became nonculturable rapidly at 20 and 10 deg C and slightly later at 4 deg C. Incubation in a microaerobic atmosphere improved survival, but after day 8, campylobacters were detectable by direct-count procedures only. The increase in the number of coccoid cells was most pronounced at 37 deg C but also was noticeable at 20 and 10 deg C. Two forms of coccoid cells were seen electron microscopically, but only one (20 and 10 deg C) seemed to be a degenerative form. The fatty acid composition of bacterial cells was influenced significantly by low temperatures. The concentrations of excreted metabolites were analyzed to obtain information on metabolic activity.

Détails

  • Titre original : Effect of low temperatures on growth, structure and metabolism of Campylobacter coli SP10.
  • Identifiant de la fiche : 1999-0867
  • Langues : Anglais
  • Source : Appl. environ. Microbiol. - vol. 64 - n. 2
  • Date d'édition : 02/1998

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