Abstract
Two yeast strains designated as 20-27-1 and 20-28 were isolated from the fruiting bodies of Tricholoma gambosum and Marasmius maximus, respectively, which were collected in Wudaogou, Weichang county, Chengde area, Hebei Province, China. The multi-locus analysis of the sequences of the rDNA ITS, D1/D2 LSU, and SSU regions, together with partial sequences of two protein-coding genes RPB1 and TEF1 indicates that the two strains are closely related to Nakazawaea ernobii and Nakazawaea holstii, showing the similarity values of 99.3-98.7%, 97.2-97.1%, 91.9-92.5%, and 84.6% in D1/D2 LSU, ITS, TEF1, and RPB1, respectively. Physiologically, the two strains are different from N. ernobii and N. holstii in the assimilation of melibiose, inulin, and DL-lactic acid. Both the phenotypic and phylogenetic analyses indicate that those two strains represent a novel species in the genus Nakazawaea, for which the name Nakazawaea tricholomae f.a., sp. nov. (Fungal Names: FN 571492) is proposed.
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