Published February 1979
| Version v1
Journal article
X-ray sensitivity of Escherichia coli lysogenic for bacteriophage P2
Description
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 induceed 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. (orig.)
Abstract (German)
Staemme von E. coli C oder K, die gegenueber dem nichtinduzierbaren Phagen P2 lysogen sind, haben nach Roentgenbestrahlung eine geringere Ueberlegensrate als nichtlysogene Staemme. Diese unterschiedliche Roentgenempfindlichkeit wird nicht von einem signifikanten Unterschied in der roentgeninduzierten Mutabilitaet begleitet. Die Faehigkeit der roentgenbestrahlten P2-Lysogene, jeden Phagen aus einer Reihe unbestrahlter infizierender Phagen beliebig zu multiplizieren, ist eingeschraenkt. Diese Wirkungen der Roentgenstrahlung ist am einfachsten damit zu erklaeren, dass die Protein- und RNS-Synthese in P2-Lysogenen nach Roentgenbestrahlung stark gehemmt ist. Alle der beobachteten Ergebnisse, spezifisch bei roentgenbestrahlten P2-Lysogenen sind von P2-Gen old abhaengig. (orig.)Additional details
Publishing Information
- Journal Title
- Mol. Gen. Genet.
- Journal Volume
- 169
- Journal Issue
- 3
- Series
- Mol. Gen. Genet.
- Journal Page Range
- 229-235
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 10461014
- Subject category
- S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
- Descriptors DEI
- BACTERIA; BIOSYNTHESIS; ESCHERICHIA COLI; PROTEINS; RADIOSENSITIVITY; RNA; SURVIVAL CURVES; X RADIATION
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; MICROORGANISMS; NUCLEIC ACIDS; ORGANIC COMPOUNDS; RADIATIONS; SYNTHESIS