X-Ray sensitivity of Escherichia coli lysogenic for bacteriophage P2

✍ Scribed by Ghisotti, Daniela ;Zangrossi, Sandro ;Sironi, Gianpiero

• Book ID: 104747839
• Publisher: Springer
• Year: 1979
• Tongue: English
• Weight: 611 KB
• Volume: 169
• Category: Article
• ISSN: 0026-8925
• DOI: 10.1007/bf00382268

✦ Synopsis

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 nmtability. 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.