[Some effects of radiation hormesis for bacterial and yeast cells].
A comparative study of chronic and acute action of ionizing radiation on the processes of aging and dying off of bacterial and yeast cells was carried out. It was ascertained that chronic action of ionizing radiation, 2-10,000 times exceeded the natural background, resulted in slowing down of aging and dying off of both pro- and eukaryotic cells. A single acute irradiation of yeast also resulted in the retardation of dying off of the yeast cells surviving after irradiation. The data is presented demonstrating a great increase in the survival of yeast cells under their repeated irradiation after recovery from potentially lethal radiation.
Petin
V G
VG
Medical Radiological Research Center, Russian Academy of Medical Sciences, Obninsk, 249036 Russia. petin@obninsk.com
Morozov
I I
II
Kabakova
N M
NM
Gorshkova
T A
TA
D016923:Cell Death / Q000528:radiation effects*; D002470:Cell Survival / Q000528:radiation effects*; D003037:Cobalt Radioisotopes; D003470:Culture Media; D004926:Escherichia coli / Q000166:cytology / Q000254:growth & development / Q000528:radiation effects*; D005720:Gamma Rays; D006801:Humans; D011829:Radiation Dosage; D011839:Radiation, Ionizing; D012441:Saccharomyces cerevisiae / Q000166:cytology / Q000254:growth & development / Q000528:radiation effects*; D013997:Time Factors
D003037:Cobalt Radioisotopes; D003470:Culture Media