Article
Chromium(VI) and apparent phenotypic reversion in Salmonella TA100.
Mutation research - 1 Jan 2000
Baker R S, Bonin A M, Arlauskas A, Tandon R K, Crisp P T, Ellis J
Abstract excerpt
After treatment with potassium chromate at concentrations causing ultramicroscopic cellular lesions, a significant proportion (up to 75%) of TA100 colonies fail to replicate on fresh minimal plates containing biotin. This suggests that chromium(VI) may not always induce his- reversion to his+ in Salmonella TA100. The terms 'false' or phenotypic reversion have been used to distinguish such instances from 'true' or...
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