title: Reappraisal of the effect of temperature on the growth kinetics of Aeromonas salmonicida.
abstract: The effect of temperature (1-34 degrees C) on the maximum specific growth rate of Aeromonas salmonicida could not be described by the classical growth models; for some strains, two optimal temperatures at 23 degrees C and 30 degrees C were observed, as well as an unexpected increase in the pseudolag time above 27 degrees C. This could be explained by the presence of two subsets, notably S-layer+ and S-layer- sub-populations. The A- cells had higher growth parameters (Topt and mu opt) than the A+ cells and were selected by subcultures above 30 degrees C. Yet the relative proportion of A+ cells did not explain all the variation of mu max versus temperature, and the growth kinetics of an Aer. salmonicida isolate remained unpredictable.
authors.affiliation: Laboratoire de Microbiologie, Ecole Nationale Vétérinaire de Lyon, France.
authors.forename: V
authors.initials: V
authors.lastname: Guérin-Faublée
authors.forename: S
authors.initials: S
authors.lastname: Charles
authors.forename: M
authors.initials: M
authors.lastname: Chomarat
authors.forename: J P
authors.initials: JP
authors.lastname: Flandrois
mesh_terms: D000333:Aeromonas / Q000254:growth & development*; D013696:Temperature