[Dependence of the mutagenic effect of N-nitroso-N-methylbiuret on the pH index].
The mutagenic effect of nitrosocompounds is known to be dependent on pH. The effect of N-nitrozo-N-methylbiuret on the conidia of Penicillium chrysogenum was studied within the ranges of pH from 5.0 to 7.0, the role of the buffer and distilled water being also considered. It was found that survival, morphological variation and induction of biochemical mutants depended on the value of pH. The optimal conditions for the culture treatment at the exposures tested were provided at pH 6.0 with the use of a phosphate buffer mixture as a substrate.
D001737:Biuret / Q000031:analogs & derivatives* / Q000494:pharmacology; D002021:Buffers; D002470:Cell Survival / Q000187:drug effects; D006863:Hydrogen-Ion Concentration; D009154:Mutation / Q000187:drug effects*; D009602:Nitrosamines / Q000494:pharmacology*; D010408:Penicillium chrysogenum / Q000187:drug effects; D013172:Spores, Fungal / Q000187:drug effects; D013997:Time Factors; D014508:Urea / Q000031:analogs & derivatives*
D002021:Buffers; D009602:Nitrosamines; C008654:N-nitroso-N-methylbiuret; D001737:Biuret; D014508:Urea
Zavisimost' mutagennogo éffekta N-nitrozo-N-metilbiureta ot pokazatelia pH