title: [Variability of cultures of Pullularia pullulans with different ploidy levels].
abstract: As the level of ploidy rises in Pullularia pullulans, this causes an increase in the frequency of spontaneous and UV-induced auxotrophic mutants as well as mutants with a modified respiration activity while the frequency of morphological mutants decreases. The latter can arise as a result of recessive and dominant mutations. A higher frequency of morphological mutants in the haploid may be result of recessive mutations. It is likely that the frequency of dominant mutations increases in cultures with a higher level of ploidy since, as the difference between the frequency of UV-induced mutants and the frequency of spontaneous morphological mutants increases.
mesh_terms: D004171:Diploidy / Q000528:radiation effects; D006238:Haploidy / Q000528:radiation effects; D003904:Mitosporic Fungi / Q000235:genetics*; D009154:Mutation / Q000528:radiation effects; D011003:Ploidies / Q000528:radiation effects*; D011123:Polyploidy / Q000528:radiation effects; D014466:Ultraviolet Rays
vernacular_title: Izmenchivost' kul'tur Pullularia pullulans, imeiushchikh raznyĭ uroven' ploidnosti.