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FORMS OF INACTIVATION OF YEAST CELLS BY IONIZING RADIATIONS

Journal Article · · Biophysics (USSR) (English Translation)
OSTI ID:4272799
Yeast cells incubated at 30 icient laborato C on solid media after gamma irradiation show three periods of delay in division which differ in the way they vary with dose, in reversibility, and in distribution within the irradiated population. Three types of inactivation are found: without prior division, after 1 and after 4 to 7 divisions. The distribution of these forms over the population depends on the dose. The late inactivation effect and recovery are not directly related to the ploidy and are found in haploid and diploid strains, at least if resting cells are gamma irradiated. It is supposed that the wave- like development of damage is a feature of the reaction to ionizing radiations shown by many unicellular organisms, as well as by multicellular ones. (auth)
Research Organization:
Lomonosov State Univ., Moscow
NSA Number:
NSA-13-008560
OSTI ID:
4272799
Journal Information:
Biophysics (USSR) (English Translation), Journal Name: Biophysics (USSR) (English Translation) Vol. Vol: 3
Country of Publication:
Country unknown/Code not available
Language:
English

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