Radiosensitivity of spores of DNA polymerase deficient mutants of Bacillus subtilis

Journal Article · Mon Jan 01 04:00:00 EST 1973 · Bull. Inst. Chem. Res., Kyoto Univ., v. 51, no. 1, pp. 59-64

OSTI ID:4389758

Terano, H; Kadota, H

The radiosensitivity to gamma rays of the spores and the vegetative cells of Bacillus subtilis mutants with the reduced DNA polymerase activity was compared with that of their parent strains. Both the spores and the vegetative cells of the mutants were approximately 2 times as sensitive to gamma rays as those of the parent strains. It is suggested that the differences in radiosensitivity between the mutant spores and the parent spores are at least partly attributable to the genetic differences between the strains in themselves. The spores of the mutants employed were biologically normal in many respects with the exception of the sensitivity to chlorampheniol and the cell size. (auth)

• Research Organization: Kyoto Univ.
• NSA Number: NSA-29-005295
• OSTI ID: 4389758
• Journal Information: Bull. Inst. Chem. Res., Kyoto Univ., v. 51, no. 1, pp. 59-64, Journal Name: Bull. Inst. Chem. Res., Kyoto Univ., v. 51, no. 1, pp. 59-64; ISSN BICRA
• Country of Publication: Japan
• Language: English

Related Subjects

*BACILLUS SUBTILIS-- RADIOSENSITIVITY
*BACTERIAL SPORES-- RADIOSENSITIVITY
BIOLOGICAL RADIATION EFFECTS
DNA
DOSE-RESPONSE RELATIONSHIPS
GAMMA RADIATION
MUTANTS
N48310* --Life Sciences--Radiation Effects on Microorganisms- -Basic Studies
PHOTON BEAMS
SURVIVAL CURVES
TIME DEPENDENCE
VEGETATIVE PROPAGATION