Polyphasic taxonomy of the basidiomycetous yeast genus Rhodosporidium: R. azoricum sp. nov.
This report presents the description of a new heterothallic Rhodosporidium species, R. azoricum sp. nov. The new species is based on two strains previously identified as Rhodotorula glutinis, which were isolated from soil in São Miguel island, Azores, Portugal. Evidence that the two strains were conspecific and distinct from Rhodotorula glutinis was obtained in DNA fingerprinting experiments using the microsatellite-primed PCR approach (MSP-PCR) and the primers M13 and (GTG)5. In order to determine the phylogenetic position of the new species, the nucleotide sequence of the D1/D2 region of the 26S rDNA was analysed and Rhodosporidium azoricum was found to belong to a cluster including R. fluviale, R. lusitaniae, Sporidiobolus microsporus, and S. ruineniae. The life cycle of R. azoricum was investigated and comparisons integrating physiological, morphological, and molecular data were made with related species.
Gadanho
M
M
Centro de Recursos Microbiológicos, Secção Autónoma de Biotecnologia, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
Sampaio
J P
JP
Spencer-Martins
I
I
D001394:Azores; D001482:Base Composition; D001487:Basidiomycota / Q000145:classification* / Q000166:cytology; D002965:Classification; D004275:DNA, Ribosomal / Q000235:genetics; D016533:Mycological Typing Techniques; D009693:Nucleic Acid Hybridization; D016133:Polymerase Chain Reaction; D012335:RNA, Ribosomal / Q000235:genetics; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D015003:Yeasts / Q000145:classification* / Q000166:cytology
D004275:DNA, Ribosomal; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S