Trichosporon insectorum sp. nov., a new anamorphic basidiomycetous killer yeast.
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.
Fuentefria
Alexandre M
AM
Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Brazil.
Suh
Sung-Oui
SO
Landell
Melissa F
MF
Faganello
Josiane
J
Schrank
Augusto
A
Vainstein
Marilene H
MH
Blackwell
Meredith
M
Valente
Patrícia
P
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
D004271:DNA, Fungal; D004275:DNA, Ribosomal; D012335:RNA, Ribosomal