title: Cryptococcus festucosus sp. nov. a new hymenomycetous yeast in the Holtermannia clade.
abstract: Five yeast strains belonging to the genus Cryptococcus Vuillemin were isolated from steppe plants and turf collected in the Prioksko-terrasny biosphere reserve (Moscow region, Russia). Sequence analyses of the D1/D2 domains of the 26S rDNA and of the internal transcribed spacer region revealed that these yeast strains and strain CBS 8016 have almost identical sequences and belong to the Holtermannia clade of the Tremellomycetidae (Basidiomycota, Hymenomycetes). A novel species named Cryptococcus festucosus (type strain VKM Y-2930) is proposed to accommodate these strains. Physiological characteristics and mycocin sensitivity patterns distinguishing Cryptococcus festucosus from the other species of this clade are presented.
authors.affiliation: Russia Collection of Microorganisms, Institute of Biochemistry and Physiology of Microorganisms, Pushchino, Russia. wig@ibpm.pushchino.ru
authors.forename: Wladyslav I
authors.initials: WI
authors.lastname: Golubev
authors.forename: José P
authors.initials: JP
authors.lastname: Sampaio
authors.forename: Leonor
authors.initials: L
authors.lastname: Alves
authors.forename: Nikita W
authors.initials: NW
authors.lastname: Golubev
mesh_terms: D000935:Antifungal Agents / Q000494:pharmacology; D003454:Cryptococcus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D004271:DNA, Fungal / Q000737:chemistry / Q000302:isolation & purification; D004275:DNA, Ribosomal / Q000737:chemistry / Q000302:isolation & purification; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000302:isolation & purification; D020459:Genes, rRNA; D008826:Microbial Sensitivity Tests; D008969:Molecular Sequence Data; D016533:Mycological Typing Techniques; D010802:Phylogeny; D010944:Plants / Q000382:microbiology*; D012335:RNA, Ribosomal / Q000235:genetics; D012426:Russia; D017422:Sequence Analysis, DNA; D017385:Sequence Homology
chemical_list: D000935:Antifungal Agents; D004271:DNA, Fungal; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S