Mutagenic activity in synthetic pyrethroids in Salmonella typhimurium |
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Authors: | Herrera Augustias; Laborda Eugenio |
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Institution: | Instituto de Edafologia y Biologia Vegetal C/ Serrano 115 dpdo 28006, Madrid, Spain |
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Abstract: | Four pyrethroids, allethrin, resmethrin, permethrin and fen-valerate,were tested for mutagenicity in bacterial reversion assay systemswith seven strains (TA1535, TA100, TA1538, TA98, TA1537, TA97and TA104) of Salmonella typhimurium. Our results show thatthree pyrethroids, namely resmethrin, permethrin and fenvalerate,were not found to be mutagenic in S. typhimurium in the presenceor absence of a rat liver activation system. Allethrin was foundto be mutagenic with TA100, TA104 and TA97 strains and requiredmetabolic activation (S9 mix) in order to show its activity,mainly with TA100 and TA104 strains. |
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