Ubiquinone system, GC contents and cellular fatty acid composition of species of the form-genus Malbranchea and Coccidioides immitis for chemotaxonomic study

Ubiquinone system, GC contents and cellular fatty acid (CFA) composition were analyzed as criteria for chemotaxonomy of Maibranchea species and Coccidioides immitis, which are suggested to be phylogenetically related. Based on the major ubiquinone, Malbranchea spp. were divided into two groups, of which one group possessed the same major ubiquinone as C. immitis. Similar GC contents and CFA profiles were obtained for the species of Malbranchea and C. immitis. On the basis of these criteria the relationships between the fungi are discussed.