The Loci of Action of Ultraviolet and X-radiation and of Photorecovery in the Egg and Sperm of the Sea Urchin Arbacia Punctulata
نویسندگان
چکیده
Various experiments are described which show the locus of action of ultraviolet radiation and of x-ray in delaying cell division of the fertilized egg of Arbacia punctulata to be in the nucleus. Photorecovery following ultraviolet radiation has its locus in the egg cytoplasm. Analogy is drawn with the action of ultraviolet radiation and photorecovery on the E. coli-bacteriophage system, and certain suggestions are made regarding a common mechanism. Photorecovery after x-ray exposure could not be demonstrated.
منابع مشابه
T H E Loci of Action of Ultraviolet and X-radiation and of Photorecovery
This paper describes experiments on the effects of ultraviolet radiation and of x-rays on the eggs and sperm of the sea urchin Arbacia punclulata, carried out during the summer of 1950.1 These, together with earlier findings already described (Blum and Price, 1950 a, b; Blum, Loos, and Robinson, 1950) permit certain conclusions to be reached regarding the locus of action of these radia-' tions,...
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عنوان ژورنال:
- The Journal of General Physiology
دوره 35 شماره
صفحات -
تاریخ انتشار 1951