Affiliation:
1. From the National Cancer Institute, Bethesda; Department of Biology, Princeton University, Princeton; and the Marine Biological Laboratory, Woods Hole
Abstract
Light of wave lengths 0.30µ to 0.50µ, accelerates return of the cleavage rate of Arbacia eggs to normal, after delay by exposure to ultraviolet radiation (wave lengths 0.238µ to 0.31µ). Recovery is apparently complete. Wave lengths 0.30µ to 0.50µ have no effect on the cleavage rate of normal eggs, nor does such illumination previous to dosage with ultraviolet radiation influence subsequent recovery. Acceleration of recovery of the egg occurs before fertilization as well as after.
The effects of ultraviolet radiation and recovery therefrom are essentially the same in nucleated "white halves" as in the intact eggs.
This phenomenon in the Arbacia egg seems basically comparable to photoreactivation of bacteria and fungi.
Publisher
Rockefeller University Press
Cited by
27 articles.
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