Patterns of radiorace formation in yeast organisms. Report 11. Facts and hypotheses
Journal Article
·
· Radiobiology (USSR) (Engl. Transl.); (United States)
OSTI ID:5111714
A hypothesis is expounded to explain the patterns of radiation-induced race formation in yeast. According to this hypothesis, the same primary lesions that elicit the lethal effect play the leading role in radiorace formation. Each such injury is absolutely lethal to haploid cells. In diploid cells, each injury elicits a lethal effect only with a certain degree of probability. The effects of different injuries are cumulative. If the cell sustains no damage, it will survive and originate a clone that does not differ from the control. If a cell sustains one or several injuries, it either perishes or originates a mutant or unstable clone. The greater the number of injuries in the original irradiated cell, the greater the instability of the clone; with a large enough number of injuries, all offspring of the irradiated cell perish. The lesions that have the above properties are most likely major chromosomal aberrations.
- Research Organization:
- All-Union Scientific Research Inst. of Genetics and Breeding of Commercial Microorganisms, Moscow
- OSTI ID:
- 5111714
- Journal Information:
- Radiobiology (USSR) (Engl. Transl.); (United States), Journal Name: Radiobiology (USSR) (Engl. Transl.); (United States) Vol. 17:4; ISSN RADBA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560131* -- Radiation Effects on Microorganisms-- Basic Studies-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL VARIABILITY
BIOMASS
CHROMOSOMAL ABERRATIONS
ENERGY SOURCES
FUNGI
INJURIES
IONIZING RADIATIONS
MICROORGANISMS
MUTATIONS
PLANTS
RADIATION EFFECTS
RADIATION INJURIES
RADIATIONS
RADIOINDUCTION
RENEWABLE ENERGY SOURCES
YEASTS
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL VARIABILITY
BIOMASS
CHROMOSOMAL ABERRATIONS
ENERGY SOURCES
FUNGI
INJURIES
IONIZING RADIATIONS
MICROORGANISMS
MUTATIONS
PLANTS
RADIATION EFFECTS
RADIATION INJURIES
RADIATIONS
RADIOINDUCTION
RENEWABLE ENERGY SOURCES
YEASTS