The effect of ionizing radiations with different LET on survival and mutation in Chlorella.
The exposure of cells of Chlorella vulgaris LARG-I to radiations with a low LET (consisting of gamma-rays) yielded sigmoid dose-effect curves, whereas the action of radiations with a high LET (multiply charged ions of carbon C12(+6), boron B11(+2), neon Ne22(+4), argon Ar40(+8)) gave exponential curves. The rate of visible mutations depends directly on dose in the case of radiations with a low LET; it is a maximum after the action of radiations with a high LET. The highest RBE is shown by multiply charged ions of carbon (dE/dX 2850 MeV g-1 cm2). With dE/dX higher and lower than that of carbon ions the biological efficiency of radiations is less.
Dubinin
N P
NP
Academy of Sciences of the USSR, Moscow, USSR.
Shevchenko
V A
VA
Rubanovich
A V
AV
Vekshina
L K
LK
Sakovich
I S
IS
D001128:Argon; D001895:Boron; D002244:Carbon; D002708:Chlorella / Q000235:genetics / Q000254:growth & development / Q000528:radiation effects*; D004249:DNA Damage; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D020450:Heavy Ions; D018499:Linear Energy Transfer; D009154:Mutation; D009356:Neon; D012062:Relative Biological Effectiveness; D014466:Ultraviolet Rays
D009356:Neon; D001128:Argon; D002244:Carbon; D001895:Boron