Abstract
IN addition to the four strains of Saccharomyces cerevisiae and one strain of Saccharomyces delbrueckii that form asci with more than four spores per ascus1, I have found eight other strains of Saccharomyces cerevisiae that are able to form asci with five, six, seven, eight and nine smooth, round ascospores. One of these strains was obtained some years ago from Seagram's collection in the United States. The other seven strains were recently isolated (one from barley grains, another from prickly pear and five from wine). The shape, size and germination pattern of the spores seem to indicate that the ascospores from multispored asci are haploid. There is thus considerable experimental evidence for the natural occurrence of polyploid yeasts.
Similar content being viewed by others
Article PDF
References
Santa María, J., J. Bact., 74, 692 (1957); Bol. Inst. Nac. Inv. Agrondmicas, 17, 231 (1957).
Kleyn, J. G., Wallerstein Lab. Com., 17, 91 (1954).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
MARÍA, J. Polyploidy in Yeasts. Nature 181, 1740 (1958). https://doi.org/10.1038/1811740a0
Issue Date:
DOI: https://doi.org/10.1038/1811740a0
This article is cited by
-
Intratetrad mating and its genetic and evolutionary consequences
Russian Journal of Genetics (2005)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.