Spathaspora arborariae sp. nov., a d-xylose-fermenting yeast species isolated from rotting wood in Brazil

• Published in: FEMS yeast research Vol. 9; no. 8; pp. 1338 - 1342
• Main Authors: Cadete, Raquel M, Santos, Renata O, Melo, Monaliza A, Mouro, Adriane, Gonçalves, Davi L, Stambuk, Boris U, Gomes, Fátima C.O, Lachance, Marc-André, Rosa, Carlos A
• Format: Journal Article
• Language: English
• Published: Oxford, UK Oxford, UK : Blackwell Publishing Ltd 01.12.2009; Blackwell Publishing Ltd; Oxford University Press
• Subjects: Asci; Brazil; Candida - genetics; Cluster Analysis; d-xylose-fermenting yeast; DNA, Fungal - chemistry; DNA, Fungal - genetics; DNA, Ribosomal - chemistry; DNA, Ribosomal - genetics; Genes, rRNA; Molecular Sequence Data; New species; new yeast species; Phylogeny; Rainforests; RNA, Fungal - genetics; RNA, Ribosomal, 28S - genetics; rotting wood; rRNA; Saccharomycetales - classification; Saccharomycetales - cytology; Saccharomycetales - isolation & purification; Saccharomycetales - metabolism; Sequence Analysis, DNA; Spathaspora arborariae; Spores, Fungal - cytology; tropical ecosystems; Wood - microbiology; Xylose; Xylose - metabolism; Yeast; Brazil; Atlantic Forest; xylose-fermenting yeast; rotting wood; tropical ecosystems; new yeast species
• ISSN: 1567-1356; 1567-1364
• DOI: 10.1111/j.1567-1364.2009.00582.x

Four strains of a new yeast species were isolated from rotting wood from two sites in an Atlantic Rain Forest and a Cerrado ecosystem in Brazil. The analysis of the sequences of the D1/D2 domains of the large-subunit rRNA gene showed that this species belongs to the Spathaspora clade. The new species ferments d-xylose efficiently and is related to Candida jeffriesii and Spathaspora passalidarum, both of which also ferment d-xylose. Similar to S. passalidarum, the new species produces unconjugated asci with a single greatly elongated ascospore with curved ends. The type strain of Spathaspora arborariae sp. nov. is UFMG-HM19.1AT (=CBS11463T=NRRL Y-48658T).