title: The mutagenicity of butadiene towards Salmonella typhimurium.
abstract: Gaseous butadiene (BUT) was mutagenic towards S. typhimurium strain TA 1530 when the incubation mixture was supplemented with a NADPH-fortified rat liver microsomal preparation; mutagenicity increased with the dose. A significant mutagenic effect was similarly observed when the petri dishes, containing the bacteria but no metabolic activation system, were incubated in the presence of butadiene, in a desiccator in which plates containing the S-9 rat liver fraction had been placed. This indirect mutagenic effect was attributed to the formation, by the S-9 mix, of volatile intermediate(s) that migrated and induced mutations in neighbouring bacteria.
mesh_terms: D000818:Animals; D002070:Butadienes / Q000633:toxicity*; D004032:Diet; D066298:In Vitro Techniques; D008930:Mitochondria, Liver / Q000378:metabolism; D009153:Mutagens; D051381:Rats; D012486:Salmonella typhimurium / Q000187:drug effects / Q000235:genetics*
chemical_list: D002070:Butadienes; D009153:Mutagens