Gallic and tannic acids inhibit the mutagenicity of a direct acting mutagen N-methyl-N’-nitro-N-nitrosoguanidine, but not of a Promutagen Dimethylnitrosamine inArabidopsis thaliana

Abstract
Gallic and tannic acids reduced the frequency of mutations induced by a direct acting mutagen N-methyl-N’-nitro-N-nitrosoguanidine (MNNG) but had no effect on the mutagenicity of a promutagen dimethylnitrosamine inArabidopsis thaliana. Polarographic studies demonstrated a chemical interaction between MNNG and both phenolic acids.