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  • Title: [Variability of cultures of Pullularia pullulans with different ploidy levels].
    Author: Imshenetskii AA, Kondrat'eva TF, Lobacheva NA.
    Journal: Mikrobiologiia; 1985; 54(2):233-8. PubMed ID: 4040204.
    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.
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