ゾウリムシの未熟期の長さにおよぼす紫外線照射の影響

概要

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One of two exconjugants derived from the same conjugant pair was irradiated with 253.7nm ultraviolet light (800erg.mn^<-2>); the other was used as a nonirradiated control The irradiation was performed on the exconjugant at the four macronuclear anlagen stage. The length of the period of immaturity was measured by the number of fissions between conjugation and the first appearance of mating reactivity. Eleven pairs of exconjugant clones were established. The difference of the length of the period of immaturity between UV-irradiated and non-irradiated clones was statistically significant (P<0.01) indicating a shortening effect of UV-irradiation. In another experiment in which UV-irradiation was performed on cells at the age of 20 fissions, a tendency to shorten the period of immaturity was recognized in UV-irradiated clones, althoutg the difference between UV-irradiated and non-irradiated clones was not statistically significant (0.05<P<0.10).
社団法人日本動物学会の論文
1974-03-25