Cytogenetic analysis of seeds of Crepis capillaris (L) Wallr. exposed on board the earth artificial satellite Cosmos 613

We studied the effect of space flight factors on air-dry seeds of Crepis capillaris (L) Wallr. and on radiation injury of seeds exposed to gamma-radiation (3 kr, 525 r/min) before and after the flight on the satellite Cosmos 613. Space flight factors induced little increase (which was statistically...

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Bibliographic Details
Published inLife sciences and space research Vol. 14; p. 201
Main Authors Vaulina, E N, Kostina, L N, Mashinsky, A L
Format Journal Article
LanguageEnglish
Published Netherlands 1976
Subjects
Cesium Radioisotopes
Chromosome Aberrations
Crepis - genetics
Crepis - radiation effects
Gamma Rays
Meristem - genetics
Meristem - radiation effects
Radiation Tolerance
Seeds - genetics
Seeds - radiation effects
Space Flight
Weightlessness
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Summary:We studied the effect of space flight factors on air-dry seeds of Crepis capillaris (L) Wallr. and on radiation injury of seeds exposed to gamma-radiation (3 kr, 525 r/min) before and after the flight on the satellite Cosmos 613. Space flight factors induced little increase (which was statistically insignificant) in the rate of chromosome aberrations in cells of the root meristem of Crepis capillaris sprouts, but they enhanced the effect of preliminary irradiation of seeds and decreased their radiosensitivity. The modification of radiation injury was statistically significant.
ISSN:0075-9422