title: Trichosporon insectorum sp. nov., a new anamorphic basidiomycetous killer yeast.
abstract: Three killer yeasts, isolated from the gut of insects in Panama and artisanal cheese in Brazil, were shown to be related to the Ovoides clade of the genus Trichosporon. Sequencing of the D1/D2 region of the LSU rDNA and physiological characterization revealed a distinct taxonomic position in relation to known species of the genus. Conspecificity of the three killer isolates was reinforced by similar M13 fingerprinting and killer profiles. We propose a new species in this genus: Trichosporon insectorum. The type strain is CBS 10422(T) (syn. NRRL Y-48120). This anamorphic species produces arthroconidia but not appressoria, and its killer character seems to be associated with dsRNA.
authors.affiliation: Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Brazil.
authors.forename: Alexandre M
authors.initials: AM
authors.lastname: Fuentefria
authors.forename: Sung-Oui
authors.initials: SO
authors.lastname: Suh
authors.forename: Melissa F
authors.initials: MF
authors.lastname: Landell
authors.forename: Josiane
authors.initials: J
authors.lastname: Faganello
authors.forename: Augusto
authors.initials: A
authors.lastname: Schrank
authors.forename: Marilene H
authors.initials: MH
authors.lastname: Vainstein
authors.forename: Meredith
authors.initials: M
authors.lastname: Blackwell
authors.forename: Patrícia
authors.initials: P
authors.lastname: Valente
mesh_terms: D000818:Animals; D000898:Antibiosis; D001938:Brazil; D002611:Cheese / Q000382:microbiology; D001517:Coleoptera / Q000382:microbiology*; D016172:DNA Fingerprinting; D004271:DNA, Fungal / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D050296:Microbial Viability; D008969:Molecular Sequence Data; D016533:Mycological Typing Techniques; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics; D017422:Sequence Analysis, DNA; D014250:Trichosporon / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D015003:Yeasts / Q000502:physiology
chemical_list: D004271:DNA, Fungal; D004275:DNA, Ribosomal; D012335:RNA, Ribosomal