Cellular carbohydrate composition, DNA base composition, ubiquinone systems, and Diazonium Blue B color test in the genera Rhodosporidium, Leucosporidium, Rhodotorula and related basidiomycetous yeasts.

An antigenic water-soluble glucogalactomannan extracted from cell walls of Paecilomyces fumosoroseus and Paecilomyces farinosus

“…Fungal carbohydrates are a reliable character for taxonomic classification (Bartnicki-Garcia, 1968 ; Sugiyama et al, 1985;Weijman e t al., 1982;Weijman & Golubev, 1987; Weijman & Van der Walt, 1989; Wessels et al, 1972). The polysaccharides formerly used as chemotaxonomic markers are major components of the cell wall such as the glucan-chitin complex or the a-or p-glucans, which are characteristic of higher fungi (Bartnicki-Garcia, 1968).…”

The phylogenetic relationship of the Q9-equipped species of the heterobasidiomycetous yeast genera Rhodosporidium and Leucosporidium based on the partial sequences of 18S and 26s ribosomal ribonucleic acids: The proposal of a new genus Kondoa.

“…3). The two species of the genus Rhodosporidium, R, malvinellum and R. toruloides are phylogenetically separate from each other, although the two species have the same Co-Q system comprised of Q-9 (12,17,18). The partial sequences of the positions 1451 through 1618 of 18S rRNA The primary partial sequences of the eight strains of Rhodosporidium, Leucosporidium, and Rhodotorula species were aligned (Fig.…”

“…Three of the nine species, Rhodosporidium bisporidii Fell, Hunter et Tallman (1973), Rhodosporidium capitatum Fell, Hunter et Tallman (1973), and Rhodosporidium infirmominiatum Fell, Hunter et Tallman (1973), were transferred to the genus Cystofilobasidium Oberwinkler et Bandoni based on the differences in their morphological and chemotaxonomic characteristics (6,11). These three are characterized by the formation of holometabasidia, the production of starch-like compounds, the presence of xylose in the cells, and the Q-8 system (3,11,12,16,18). The remaining six species of the genus Rhodosporidium were divided into two groups on the basis of the Co-Q system (12,16,18).…”

“…These three are characterized by the formation of holometabasidia, the production of starch-like compounds, the presence of xylose in the cells, and the Q-8 system (3,11,12,16,18). The remaining six species of the genus Rhodosporidium were divided into two groups on the basis of the Co-Q system (12,16,18). The first group includes the Q9-equipped species, R. toruloides (the type species of the genus Rhodosporidium) and Rhodosporidium malvinellum Fell et Hunter (1970 Yeast strains examined.…”

Septal pore ultrastructure of Leucosporidium lari-marini, a basidiomycetous yeast, and its taxonomic implications.

“…To date, Q-8 has been reported as the major ubiquinone system in the only known species of Cystofilobasidium and Mrakia, both in the Filobasidiaceae, among basidiomycetous yeast taxa (12,15). The ubiquinone system of L. lari-marini showed a close relationship with these genera.…”