Debaryomyces psychrosporus sp. nov., a yeast species from a Venezuelan cave.

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Authors

DLAUCHY Dénes TORNAI-LEHOCZKI Judit SEDLÁČEK Ivo AUDY Marek PÉTER Gábor

Year of publication 2011
Type Article in Periodical
Magazine / Source Antonie van Leeuwenhoek International Journal of General and Molecular Microbiology
MU Faculty or unit

Faculty of Science

Citation
Field Microbiology, virology
Keywords New yeast species; Debaryomyces hansenii complex ; Debaryomyces psychrosporus; Parsimony network analysis
Description Three yeast strains, which are phenotypically indistinguishable from Debaryomyces hansenii, were recovered from secondary mineral deposits (stalactites and stromatolites) obtained in the Crystal Eyes Cave, Roraima Tepui Mountain, Venezuela. Analyses of the D1/D2 domains of the LSU rRNA gene as well as the concatenated sequences of the nearly entire SSU rRNA gene, the ITS regions and the D1/D2 domains of the LSU rRNA gene confirmed the placement of these strains in the genus Debaryomyces, but relationship with all valid species of D. hansenii complex was distant. Based on the observed considerable sequence divergence the three strains are proposed as a new species, D. psychrosporus sp. nov., with the type strain NCAIM Y.01972T (CBS 11845T, NRRL Y-48723T).
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