Cytogenetic effects of heavy charged particles of galactic cosmic radiation in experiments aboard Cosmos-1129 biosatellite
Technical Report
·
OSTI ID:6254370
An experiment was carried out on lettuce (Lactuca sativa) seeds flown in a biocontainer equipped with plastic detectors to record heavy charged particles (HCP). The purpose of the experiment was to determine the yield of aberrant cells as a result of irradiation, and to identify this effect as a function of HCP topography in the seed. The cytogenetic examination of flight seedlings revealed a significant difference between the seeds which were hit with HCP and those that remained intact. This indicates a significant contribution of the heavy component of galactic cosmic radiation into the radiobiological effect. The relationship between the radiobiological effect and the HCP topography in the seed was established: zones of the root and stem meristem proved to be the most sensitive targets.
- Research Organization:
- Joint Publications Research Service, Arlington, VA (USA)
- OSTI ID:
- 6254370
- Report Number(s):
- N-8231912
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560141* -- Radiation Effects on Plants-- Basic Studies-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGY
CHARGED PARTICLES
COSMIC RADIATION
FOOD
GENETIC EFFECTS
GENETIC RADIATION EFFECTS
IONIZING RADIATIONS
IRRADIATION
LETTUCE
RADIATION EFFECTS
RADIATIONS
RADIOBIOLOGY
SEEDS
VEGETABLES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGY
CHARGED PARTICLES
COSMIC RADIATION
FOOD
GENETIC EFFECTS
GENETIC RADIATION EFFECTS
IONIZING RADIATIONS
IRRADIATION
LETTUCE
RADIATION EFFECTS
RADIATIONS
RADIOBIOLOGY
SEEDS
VEGETABLES