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Abstract

Two basidiomycete yeast strains, designated as 21S12 and 12S11, were isolated from the flowers of 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 . The new species, sp. nov., is most closely related to CBS 10308, 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, sp. nov. differs from CBS 10308 in its ability to assimilate inulin and creatinine, as well as its inability to assimilate lactose and erythritol. Additionally, sp. nov. can grow in a vitamin-free medium and in a medium supplemented with 50% glucose, conditions under which cannot grow. The holotype of sp. nov. is CGMCC2.5852, and its taxonomic description has been registered in Fungal Names (FN572294) and in Mycobank (MBT10026390).

Funding
This study was supported by the:
  • the Strategic Biological Resources Capacity Building Project of Chinese Academy of Sciences (Award KFJ-BRP-017-73)
    • Principal Award Recipient: Ai-HuaLi
  • the Science and Technology Projects of Xizang Autonomous Region, China (Award XZ202501ZY0019)
    • Principal Award Recipient: Ai-HuaLi
  • the Key Research and Development Project of Xizang Autonomous Region (Award XZ202401ZY0061)
    • Principal Award Recipient: Ai-HuaLi
  • the National Natural Science Funds of China (Award 31970004)
    • Principal Award Recipient: Ai-HuaLi
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License. This article was made open access via a Publish and Read agreement between the Microbiology Society and the corresponding author’s institution.
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/content/journal/ijsem/10.1099/ijsem.0.006830
2025-06-26
2026-04-18

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