COENZYME Q SYSTEM IN THE CLASSIFICATION OF THE ASCOSPOROGENOUS YEAST GENUS SCHIZOSACCHAROMYCES AND YEAST-LIKE GENUS ENDOMYCES

Abstract

Nineteen cultures, which belong to the genera Schizosaccharomyces and Endomyces, were examined for the Co-Q system. The Co-Q system of the genus Endomyces was found to be Q₉. The four species hitherto described in the genus Schizosaccharomyces were, on the other hand, discriminated from each other on the basis of the quinone system; Co-Q₁₀ in the pombe-malidevorans group and Co-Q₉ in the octosporus-japonicus group. The results obtained are discussed in connection with other criteria such as antigenic structure, PMR spectra of cell wall galactomannans, and DNA base composition. The discussion is also made concerning the genus Octosporomyces KUDRIAVZEV separated from the genus Schizosaccharomyces.