Ubiquinone compounds of strains in Leucosporidium scottii, Leucosporidium fellii, Leucosporidium lari-marini, and Rhodosporidium fluviale were analyzed by the high performance liquid chromatography. The Q-9 or Q-10 compounds, independent on mating or self-sporulating type, were determined in the analyses of Leucosporidium scottii strains. Particularly, there is heterogenous in the quinone compounds in the same strain of L. scottii. These results showed reassessment of the quinone compounds as a taxonomic criterion; L. fellii had the Q-9 compound, L. lari-marini the Q-8 compound, and R. fluviale the Q-10 compound, Taxonomic position of L. lari-marini should be elucidated on the basis of analysis of Q-compound with other aspects.
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