Optimal growth temperature of O157 and non-O157 Escherichia coli strains.
OBJECTIVE
There are several biological characteristics that differ between Escherichia coli O157:H7, a dangerous food-borne pathogen, and the other serotypes of E. coli.


RESULTS
The optimal growth temperatures (T(opt)) were determined for 32 E. coli strains, whether each strain belonged to the O157 serotype or not. The mean values of T(opt) for the O157 and non-O157 groups were 40.2 and 41.2 degrees C, respectively.


CONCLUSIONS
This difference is statistically significant (P=0.0002) but has no biological implication.
Gonthier
A
A
Unité de Microbiologie Alimentaire et Prévisionnelle, Ecole Nationale Vétérinaire de Lyon, BP 83, 69280 Marcy l'Etoile, France. a.gonthier@vet-lyon.fr
Guérin-Faublée
V
V
Tilly
B
B
Delignette-Muller
M L
ML
D000818:Animals; D002417:Cattle; D018929:Cell Culture Techniques / Q000379:methods; D003470:Culture Media; D004926:Escherichia coli / Q000145:classification / Q000254:growth & development* / Q000302:isolation & purification; D019453:Escherichia coli O157 / Q000145:classification / Q000254:growth & development* / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006801:Humans; D013696:Temperature
D003470:Culture Media