UBIQUINONE SYSTEMS OF THE GENUS CLADOSPORIUM AND MORPHOLOGICALLY SIMILAR TAXA

The ubiquinone (coenzyme Q) systems of 14 species of Cladosporium were determined. The genus was divided into two groups based on the distri bution of the major ubiquinones, Q-10 and Q-10(H-2). The group contain ing Q-10 consisted of six species, four of which were human pathogens, whereas the group containing Q-10(H-2) consisted of eight plant patho genic and/or saprophytic species. The results presented here agree wit h phylogenetic and physiological studies which have shown that the hum an-pathogenic species of Cladosporium represent a homogeneous, cohesiv e group.