Temperature Effects on Minimum Inhibitory and Bactericidal Concentrations of Cell Wall Antibiotics in Streptococcus faecalis

AUTOR(ES)
RESUMO

The minimal inhibitory and bactericidal concentrations were determined at 30 and 37°C for several antibiotics affecting cell wall biosynthesis. The test organism, Streptococcus faecalis ATCC 9790, possesses a single autolytic enzyme and does not produce penicillinase. Penicillin, methicillin, and, possibly, bacitracin appeared more effective at 37 than at 30°C. Vancomycin, ristocetin, and phosphonomycin appeared equally effective at both temperatures, and cycloserine appeared consistently more active at 30 than at 37°C.

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