[Effect of heavy charged particles in galactic cosmic radiation on seeds].
The experiments were carried out on Lactuca sativa seeds exposed for 20, 66, 123 and 308 days in a biostack also containing physical detectors of heavy charged particles. The purpose of the experiments was to measure the yield of aberrant cells and its dependence on the exposure time and the site where particles hit the object. The cytogenetic examination demonstrated a significant difference between the seeds that were or were not hit by heavy charged particles. This is indicative of a significant contribution of galactic cosmic radiation to the radiobiological effect. The yield of aberrant cells as a function of the localization of heavy charged particles in the seed was established. The most sensitive target was the root meristem.
D002869:Chromosome Aberrations; D003359:Cosmic Radiation; D005118:Extraterrestrial Environment; D011831:Radiation Genetics; D012639:Seeds / Q000528:radiation effects
Vliianie tiazhelykh zariazhennykh chastits galakticheskogo kosmicheskogo izlucheniia na semena.