Ultraviolet Mitigation of X-ray Lethality in Dividing Yeast Cells

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Science  31 Oct 1958:
Vol. 128, Issue 3331, pp. 1082-1083
DOI: 10.1126/science.128.3331.1082-a


The lethal effect of x-rays on dividing yeast cells can be decreased by small ultraviolet exposures delivered before or after x-ray exposure. This mitigating action can be decreased by exposure to visible light concomitant with photoreactivation of ultraviolet lethality. The results suggest considerable overlap between x-ray and ultraviolet lethality sites in dividing cells.