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Pichia robertsii nov. spec. A new haploid homothallic yeast

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Summary

A new haploid, homothallic yeast isolated from the larval feed ofXylocopa caffra is described.

A study of its properties shows that the evolution of its sexual and biochemical characteristics has not taken place at the same rate as in the genusHansenula and the proposed genusDekkeromyces. This led the author to the conclusion that in the yeast domain phylogenetic lines may exist in which a unilateral evolution of biochemical characteristics has taken place.

At least thre groups of yeasts exist where such discrepancies exist between the evolution of their sexual and biochemical characteristics. The inclusion of the new species in these groups is discussed.

The new species has provisionally been classified in the genusPichia (in sensu Phaff).

A Latin diagnosis of the species is given.

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Authors and Affiliations

  1. National Chemical Research Laboratory, South African Council for Scientific and Industrial Research, Pretoria, South Africa

    J. P. van der Walt

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  1. J. P. van der Walt
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van der Walt, J.P. Pichia robertsii nov. spec. A new haploid homothallic yeast. Antonie van Leeuwenhoek 25, 337–343 (1959). https://doi.org/10.1007/BF02542859

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  • DOI: https://doi.org/10.1007/BF02542859

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