title: X-ray sensitivity of Escherichia coli lysogenic for bacteriophage P2.
abstract: Strains of Escherichia coli C or K lysogenic for the non-inducible phage P2 show a lower survival following X-ray irradiation as compared to nonlysogenic strains. This difference in X-ray sensitivity is not accompanied by a significant difference in X-ray induced mutability. The capacity of X-irradiated P2 lysogens to multiply any of a number of unirradiated infecting phages is severely impaired. These effects of X-ray treatment can be most simply explained as a consequence of the fact that protein and RNA syntheses are strongly inhibited in P2 lysogens after X-irradiation. All the above events specifically occurring in X-rayed P2 lysogens are dependent on the P2 gene old.
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis; D003090:Coliphages / Q000235:genetics*; D004269:DNA, Bacterial / Q000378:metabolism; D004926:Escherichia coli / Q000528:radiation effects*; D005814:Genes, Viral; D008242:Lysogeny; D009154:Mutation; D012329:RNA, Bacterial / Q000378:metabolism; D011836:Radiation Tolerance; D014965:X-Rays
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D012329:RNA, Bacterial