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INTERACTION OF IONIZING RADIATION AND ULTRAVIOLET-LIGHT IN DIPLOID YEAST STRAINS OF DIFFERENT SENSITIVITY

Authors

  • E. Schneider,

    1. Strahlenzentrum der Justus Liebig-Universität Giessen, D-63 Giessen, Leihgesterner Weg 217, Germany
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    • †Donner Laboratory and Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720, U.S.A.

  • J. Kiefer

    Corresponding author
    1. Strahlenzentrum der Justus Liebig-Universität Giessen, D-63 Giessen, Leihgesterner Weg 217, Germany
      ‡To whom communications and reprint requests should be addressed.
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  • *This work is part of the Ph.D. thesis of E. Schneider (D 26) and was reported in part at the Joint Meeting of the British Photobiology Society and Association for Radiation Research, Brighton, April, 1973, and at the 5th Int. Congress of Radiation Research, Seattle, July, 1974.

‡To whom communications and reprint requests should be addressed.

Abstract

Abstract— The interaction of ionizing radiation and UV-light regarding colony forming ability in 3 diploid yeast strains of Saccharomyces cerevisiae was investigated. A wild type and two radiation sensitive mutants were used. No difference in the response of the three strains could be detected when the UV dose was given first, but when ionizing radiation was applied shortly before UV, there were essential differences depending on the kind of mutation. The involvement of repair mechanisms in the interaction is discussed.

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