Genetical investigation of a Hungarian wine yeast

Bánhidi, Zoltán (1948) Genetical investigation of a Hungarian wine yeast. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 18. pp. 369-376. ISSN 0365-3005

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Abstract

Dividing a well sporulating Hungarian wine yeast into four haploid strains, by micromanipulator, segregaton between the mother and daughter strains is not shown in sporulation, germinating capacity and giant colonies, which shows that the strain investigated is homozygote and that the four haploid sisters in the first generation are free from the inbreeding degeneration generally observed in the Saccharomyces species. Absence of rings as characteristic of the haploid phase is discussed, compared with the absence of membrane, and explained by the haploid cells’ sticking together in a "four leaf clover" effect. In connection with the description of the technic of spore isolation comparatively simple methods were given for inoculating microcolonies.

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