title: Cryptococcus stepposus, a new filobasidiaceous yeast species found in the Prioksko-terrasny biosphere reserve in Russia.
abstract: Mycocinotyping of cryptococci from the Prioksko-terrasny reserve (Russia) has revealed three strains that have a unique mycocin-sensitivity profile. Sequencing results of the D1/D2 domain of the 26S rDNA and of the complete ITS region placed them in the Floriforme clade of the Filobasidiales lineage (Hymenomycetes). The three strains had identical sequences, which differed from those of known Filobasidium and Cryptococcus species. A novel species named Cryptococcus stepposus (type strain VKM Y-2918) is proposed to accommodate these isolates. Physiological characteristics distinguishing the novel species from other Cryptococcus species in the Floriforme clade are presented.
authors.affiliation: Russia Collection of Microorganisms (VKM), Institute for Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, 142290, Russia. wig@ibpm.pushchino.ru <wig@ibpm.pushchino.ru>
authors.forename: Wladyslav I
authors.initials: WI
authors.lastname: Golubev
authors.forename: Jose P
authors.initials: JP
authors.lastname: Sampaio
authors.forename: Ellen W
authors.initials: EW
authors.lastname: Golubeva
mesh_terms: D003454:Cryptococcus / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000502:physiology*; D004271:DNA, Fungal / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D016533:Mycological Typing Techniques; D009183:Mycotoxins / Q000494:pharmacology; D010641:Phenotype; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics; D012426:Russia
chemical_list: D004271:DNA, Fungal; D004275:DNA, Ribosomal; D009183:Mycotoxins; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S