Analysis of DNA strand break induction and repair in plants from the vicinity of Chernobyl.
For 3 years following the Chernobyl accident, DNA repair efficiency was studied in irradiated and control populations of various plant species. Compared with the control populations, some irradiated populations exhibited increases in the yield of DNA single-strand breaks per unit dose of challenge radiation. The effect was registered in low-dose-rate alpha-irradiated populations, but was absent in plant populations growing in conditions of low-dose-rate beta-irradiation. The efficiency of single-strand DNA repair was identical in control and irradiated populations and approximated 100%.
Syomov
A B
AB
N.I. Vavilov Institute of General Genetics, USSR Academy of Sciences, Moscow.
Ptitsyna
S N
SN
Sergeeva
S A
SA
D000059:Accidents; D004247:DNA / Q000302:isolation & purification; D004249:DNA Damage; D004260:DNA Repair; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D009688:Nuclear Reactors; D010944:Plants / Q000235:genetics / Q000528:radiation effects*; D011847:Radioactive Fallout; D014455:Ukraine
D011847:Radioactive Fallout; D004247:DNA