[The comparative radioresistance of chronically irradiated populations of Arabidopsis].

The radioresistance of seeds of populations of Arabidopsis thaliana (L.) Heynh. growing for 5 years in the regions with different levels of radioactive contamination within 30 km zone of Chernobyl NPP was studied. The analysis of comparative radiosensitivity by root test was performed. It has been shown that plants from Arabidopsis population growing under chronic irradiation did not gain an increased radioresistance. The data obtained show that they are more radiosensitive.