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Updated: Sep 18, 2025

Isolation of Culturable Yeasts and Molds from Soils to Investigate Fungal Population Structure
Published on: May 27, 2022
Fonsecazyma yulaniae sp. nov., a yeast species isolated from flowers
You-Jun Liao1,2, Xuan Zhang1,2, Zi-Xuan Liu2
1School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, PR China.
Abstract:
Two basidiomycete yeast strains, designated as 21S12 and 12S11, were isolated from the flowers of Yulania denudata collected from the Beijing Olympic Forest Park, PR China. Molecular phylogenetic analyses based on the D1/D2 domains of the large subunit rRNA gene and the internal transcribed spacer (ITS) region revealed that these strains represent a novel species within the genus Fonsecazyma. The new species, Fonsecazyma yulaniae sp. nov., is most closely related to Fonsecazyma mujuensis CBS 10308T, with sequence divergences of 4.3% (28 substitutions and 2 indels) in the D1/D2 domain and 8.4% (28 substitutions and 10 indels) in the ITS region. Phenotypically, F. yulaniae sp. nov. differs from F. mujuensis CBS 10308T in its ability to assimilate inulin and creatinine, as well as its inability to assimilate lactose and erythritol. Additionally, F. yulaniae sp. nov. can grow in a vitamin-free medium and in a medium supplemented with 50% glucose, conditions under which F. mujuensis cannot grow. The holotype of F. yulaniae sp. nov. is CGMCC2.5852T, and its taxonomic description has been registered in Fungal Names (FN572294) and in Mycobank (MBT10026390).
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