Estudos sôbre a possível ação mutagênica de antibióticos em bactérias

Four antibiotics have been tested (penicillin, streptomycin, chloranphenicol and aureomycin), with relation to induction of mutations in a strain of S. typhimurium triptophanelles and in a strain of X. campestris also deficient for tryptophan. No mutagenic action was detected in any case analysed.