Submitted to: International Journal of Systematic and Evolutionary Microbiology
Publication Type: Peer reviewed journal
Publication Acceptance Date: 4/29/2010
Publication Date: 4/1/2011
Citation: Peter, G., Dlauchy, D., Tornai-Lehoczki, J., Suzuki, M., Kurtzman, C.P. 2011. Spencermartinsiella europaea gen. nov., sp. nov., a new member of the family Trichomonascaceae. International Journal of Systematic and Evolutionary Microbiology. 61(4):993-1000. Interpretive Summary: This work describes the isolation of a novel yeast strain obtained from rotten wood collected from Hungary. This newly described organism, named in honor of Professor Isabel Spencer-Martins for her major contributions to the taxonomy and physiology of yeasts, is unique from other closely related yeast called Candida, because it is able to form reproductive spores called ascospores. Additionally, Spencermartinsiella is a member of a group of yeasts noted for utilizing amino acids, such as adenine and isoleucine, as a sole source of energy for growth. Consequently, this new discovery has potential biotechnological applications and provides new information for scientists to better understand the relatedness of yeast strains.
Technical Abstract: Ten strains of a novel heterothallic yeast species were isolated from rotten wood collected at different locations in Hungary. Analysis of gene sequences for the D1/D2 domain of the large subunit ribosomal RNA, as well as analysis of concatenated gene sequences for the nearly complete nuclear large subunit rRNA, nuclear small subunit rRNA, and translation elongation factor 1-alpha, placed the novel species in the family Trichomonascaceae, but showed that it is distinct from all currently recognized genera. The name Spencermartinsiella europaea is proposed to accommodate the new genus and species. Spencermartinsiella europaea can also be distinguished from currently recognized species of neighbouring genera on the basis of standard phenotypic characters. The type and isotype strains of Spencermartinsiella europaea are NCAIM Y.01817T (NRRL Y-48265T, CBS 11730T) and NCAIM Y.01819I (NRRL Y-48266I, CBS 11731I), respectively.