Mutagenic activity of thiram in Ames tester strains of Salmonella typhimurium.
The mutagenic activity of thiram was investigated in 4 histidine-requiring strains of Salmonella typhimurium (TA1535, TA100, TA1538, TA98) with and without activation by liver microsomes. In strains TA1535 and TA100, thiram induces mutations without metabolic activation. The presence of rat-liver microsome fraction, cysteine or glutathione abolish its mutagenic activity in these strains. In contrast, thiram requires metabolic activation for the expression of its mutagenic activity in TA1538 and TA98 strains. The compounds containing the sulphydryl group abolish mutagenic activity of thiram in these strains, too.
D004353:Drug Evaluation, Preclinical; D005821:Genetic Techniques; D009153:Mutagens; D012486:Salmonella typhimurium / Q000187:drug effects / Q000235:genetics; D013859:Thiocarbamates / Q000494:pharmacology*; D013893:Thiram / Q000494:pharmacology*
D009153:Mutagens; D013859:Thiocarbamates; D013893:Thiram