Letter | Published:

Chromosome Breakage in Vicia faba by Ozone

Abstract

IMPORTANT to an understanding of the biological effects of high-energy radiations is the concept of active radical formation in water1. The inability of hydrogen peroxide per se to simulate irradiation effects at concentrations expected in the cytoplasm of irradiated cells2 has focused attention on the active radicals OH and HO2. The chemical activity of such free radicals produced by the catalytic decomposition of hydrogen peroxide with ferric ions has recently been discussed3, and Phillips4 describes the production of chromosome aberrations in barley by these hydrogen peroxide ‘precursors’.

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References

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    Scholes, G., and Weiss, J., Exp. Cell Res., Supp. 2 (1952).

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    Phillips, L. L., Science, 125, 889 (1956).

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    Weiss, J., Trans. Farad. Soc., 31, 668 (1935). Moelwyn-Hughes, E. A., “Kinetics of Reactions in Solution” (Oxf. Univ. Press, 1947).

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    Wolff, S., Genetics, 39, 356 (1954).

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