The molecular phylogeny of the basidiomycetous yeast species, Leucosporidium scottii based on the partial sequences of 18S and 26S ribosomal ribonucleic acids.
1990; Microbiology Research Foundation; Volume: 36; Issue: 1 Linguagem: Inglês
10.2323/jgam.36.63
ISSN1349-8037
AutoresYuzo Yamada, Yasuyoshi Nakagawa,
Tópico(s)Mycorrhizal Fungi and Plant Interactions
ResumoLeucosporidium scottii Fell, Statzell, Hunter et Phaff was described as the type species of the genus Leucosporidium Fell, Statzell, Hunter et Phaff(2).This species is characterized morphologically by the formation of phragmometabasidia (1,2) and chemotaxonomically by the Q-9 or Q-10 system (6, 8).The genus Leucosporidium is distinguished from the genus Rhodosporidium Banno only by the lack of pigmentation in the cells.In a previous paper (10), we reported the partial sequences of 18S and 26S rRNAs of the Q9-equipped basidiomycetous yeast strains of species classified in the genera Rhodosporidium and Leucosporidium, and proposed the new genus Kondoa Yamada, Nakagawa et Banno for Rhodosporidium malvinellum Fell et Hunter based on the dissimilarity in the partial sequences of 18S and 26S rRNAs.This paper is concerned with a detailed study of the partial sequences of 18S and 26S rRNAs of L. scottii using more strains.The nineteen strains of L, scottii examined are listed in Table 1.The Co-Q system of the strains were analyzed as described previously (9).The partial sequences of 18S and 26S rRNAs were determined by the modified method described previously (7).The oligonucleotide DNA primers used in this study were 5'-ACGG-' This constitutes Part XXXVI of a series entitled "Significance of the coenzyme Q system in the classification of yeasts and yeast-like organisms."For Part XXXV, see ref. 10).
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