title: The photoreactivable component in the mutagenic action of ionizing radiations.
abstract: The influence of visible light on the lethal and the mutagenic effects of gamma-radiation on E. coli WP2 uvrA+ and E. coli WP2 uvrA cells was studied. It was shown that visible light appears to reduce the yield of gamma-induced prototrophs in E. coli WP2 uvrA cells while the yield of prototrophs in E. coli WP2 uvrA+ stays unchanged. Visible light did not change the survival of gamma-irradiated cells.
mesh_terms: D004260:DNA Repair / Q000528:radiation effects; D004255:Deoxyribodipyrimidine Photo-Lyase / Q000528:radiation effects; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics / Q000528:radiation effects*; D005720:Gamma Rays; D008027:Light; D008190:Lyases / Q000528:radiation effects; D009154:Mutation; D011740:Pyrimidine Dimers / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D011740:Pyrimidine Dimers; D008190:Lyases; D004255:Deoxyribodipyrimidine Photo-Lyase