The electrophoretic comparison of enzymes in strains of species in the anamorphic yeast genera Sterigmatomyces and fellomyces and in the teleomorphic yeast genus Sterigmatosporidium.

Abstract

A taxonomic study below the generic or at the specific level was made of the electrophoretic pattern of seven enzymes in Sterigmatomyces, Fellomyces, and Sterigmatosporidium species. The seven enzymes were glucose-6-phosphate dehydrogenase, 6-phosphogluconate dehydrogenase, isocitrate dehydrogenase, malate dehydrogenase, hexokinase, phosphoglucomutase, and catalase. All examined strains of S. elviae, S. halophilus (≡S. indicus), and S. polymorphum gave a uniform electrophoretic enzyme pattern within the respective species. Four strains of S. halophilus and three strains of S. halophilus (≡S. indicus) were linked to each other with a similarity value of 43%. The similarity value between S. elviae and S. halophilus was calculated to be only 14%. The three Fellomyces species, F. nectairei, F. penicillatus, and F. polyborus and S. tursiopsis had quite different electrophoretic enzyme patterns. Their similarity values were all 0%. Between F. nectairei and S. polymorphum, the similarity value was only 14%. These data are discussed from the taxonomic point of view.