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Mutagenic effects of sulfur dioxide onSaccharomyces cerevisiae diploid strains

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Summary

In resting cells of diploidSaccharomyces cerevisiae strains sulfur dioxide induces at very high frequency: a) respiratory deficinet mutants: b) mutants with altered methionine metabolism. In growing cells the following kinds of mutants appear: a) revertants for respiration; b) mutants altered in the methionine metabolism; c) SO2-resistants. It is suggested that sulfur dioxide acts as a selective agent through the induction SO2-resistant mutants

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Authors and Affiliations

  1. Institute of Genetics, University of Blogna, Via F. Selmi I, I-40126, Bologna, Italy

    Daniela Guerra, Patrizia Romano & C. Zambonelli

  2. Institute of Microbiology and Industries, University of Bologna, Coviolo, I-42100, Reggio Emilia, Italy

    Daniela Guerra, Patrizia Romano & C. Zambonelli

Authors
  1. Daniela Guerra
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  2. Patrizia Romano
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  3. C. Zambonelli
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Additional information

Acknowledgments. This investigation was supported by grant of C.N.R., Roma. The authors are grateful to Prof. Domenico L. Palenzona for helpful comments and suggestions.

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Guerra, D., Romano, P. & Zambonelli, C. Mutagenic effects of sulfur dioxide onSaccharomyces cerevisiae diploid strains. Experientia 37, 691–693 (1981). https://doi.org/10.1007/BF01967926

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