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Delay of Chromosome Rejoining in Vicia faba induced by Irradiation

Nature volume 173, pages 501–502 (1954)Cite this article

Abstract

I HAVE shown1 that fractionation of X-ray dosage administered to seeds of Vicia faba soaked in water causes no decrease in the number of two-hit chromosomal aberrations. However, with additional soaking in the protective agent, 2,3-dimercapto-propanol (BAL), previous to irradiation, a decrease is achieved on dosage fractionation. In order to further the understanding of this phenomenon, the following dosage-intensity experiments were performed. A constant dosage of 600 r. of 250 kVp. X-rays was administered in 3-min., 1-hr., 2-hr. and 3-hr. periods. The numbers of ring and dicentric chromosomes in 300 metaphase plates of the X-1 root-tip division were scored at each intensity.

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References

  1. Wolff, S., Genetics (in the press).

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  1. Oak Ridge National Laboratory, Oak Ridge, Tennessee

    SHELDON WOLFF

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  1. SHELDON WOLFF
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WOLFF, S. Delay of Chromosome Rejoining in Vicia faba induced by Irradiation. Nature 173, 501–502 (1954). https://doi.org/10.1038/173501b0

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