Spathaspora brasiliensis sp. nov., Spathaspora suhii sp. nov., Spathaspora roraimanensis sp. nov. and Spathasporaxylofermentans sp. nov., four novel d-xylose-fermenting yeast species from Brazilian Amazonian forest

• Published in: Antonie van Leeuwenhoek Vol. 103; no. 2; pp. 421 - 431
• Main Authors: Cadete, Raquel M., Melo, Monaliza A., Zilli, Jerri E., Vital, Marcos J. S., Mouro, Adriane, Prompt, Alice H., Gomes, Fátima C. O., Stambuk, Boris U., Lachance, Marc-André, Rosa, Carlos A.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.02.2013; Springer Nature B.V
• Subjects: Biomedical and Life Sciences; Fermentation; Life Sciences; Medical Microbiology; Microbiology; Original Paper; Plant Sciences; Rainforests; Soil Science & Conservation; Taxonomy; Yeast; Rotting wood; New yeast species; xylose-fermenting yeast; Amazonian forest
• ISSN: 0003-6072; 1572-9699
• DOI: 10.1007/s10482-012-9822-z

Four new d -xylose fermenting yeast species of the clade Spathaspora were recovered from rotting-wood samples in a region of Amazonian forest, Northern Brazil. Three species produced unconjugated asci with a single elongated ascospore with curved ends. These species are described as Spathaspora brasiliensis , Spathaspora suhii and Spathaspora roraimanensis . Two isolates of an asexually reproducing species belonging to the Spathaspora clade were also obtained and they are described as Spathaspora xylofermentans. All these species are able to ferment d -xylose during aerobic batch growth in rich YP (1 % yeast extract, 2 % peptone and 2 % D-xylose) medium, albeit with differing efficiencies. The type strains are Spathaspora brasiliensis sp. nov UFMG-HMD19.3 (=CBMAI 1425=CBS 12679), Spathaspora suhii sp. nov. UFMG-XMD16.2 (=CBMAI 1426=CBS 12680), Spathaspora roraimanensis sp. nov. UFMG-XMD23.2 (CBMAI 1427=CBS 12681) and Spathaspora xylofermentans sp. nov. UFMG-HMD23.3 (=CBMAI 1428=CBS 12682).