title: The value of the photoreactivable component in E. coli Bs-1 cells exposed to densely and sparsely ionizing radiations.
abstract: The dependence of the photoreactivation effect in E. coli Bs-1 cells on LET and energy of sparsely ionizing radiation was studied. The photoreactivation was shown to be absent after densely ionizing radiation (alpha-particles of 239Pu; fast neutrons En = 0.85 MeV) and after sparsely ionizing radiation with energies below 200 keV. In those cases where photoreactivation took place, the photoreactivable sector was found to increase with the voltage of the radiation.
mesh_terms: D000512:Alpha Particles; D004247:DNA / Q000528:radiation effects; D004255:Deoxyribodipyrimidine Photo-Lyase / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004926:Escherichia coli / Q000201:enzymology / Q000528:radiation effects*; D005214:Fast Neutrons; D005720:Gamma Rays; D008027:Light; D008190:Lyases / Q000528:radiation effects; D011740:Pyrimidine Dimers / Q000528:radiation effects; D014466:Ultraviolet Rays; D014965:X-Rays
chemical_list: D011740:Pyrimidine Dimers; D004247:DNA; D008190:Lyases; D004255:Deoxyribodipyrimidine Photo-Lyase