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Biogenesis of mitochondria 40

Phenotypic suppression of a mitochondrial mutation by a nuclear gene in Saccharomyces cerevisiae

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Summary

A mutant has been isolated which carries a nuclear mutation capable of suppressing certain aspects of the phenotype imposed by a specific mitochondrial mutation. The mitochondrial mutation [tso-r] confers cold sensitivity to growth on nonfermentable substrates and resistance to oligomycin. When both the mitochondrial and nuclear mutations are present in the same cell the cell is phenotypically cold resistant but retains a high level of oligomycin resistance. The extent of cold sensitivity suppression is dependent upon other unspecified nuclear genes. The molecular basis for the suppression may involve interactions between cytoplasmic and mitochondrial products necessary for the assembly of mitochondrial ATPase.

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Authors and Affiliations

  1. Department of Biochemistry, Monash University, 3168, Clayton, Victoria, Australia

    M. K. Trembath, B. C. Monk, G. M. Kellerman & A. W. Linnane

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  1. M. K. Trembath
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  2. B. C. Monk
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  3. G. M. Kellerman
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  4. A. W. Linnane
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Communicated by W. Gajewski

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Trembath, M.K., Monk, B.C., Kellerman, G.M. et al. Biogenesis of mitochondria 40. Molec. Gen. Genet. 140, 333–337 (1975). https://doi.org/10.1007/BF00267323

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  • DOI: https://doi.org/10.1007/BF00267323

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