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Abstract

Four yeast strains belonging to the basidiomycetous yeast genus were isolated from diverse habitats in the Ny-Ålesund region (Svalbard, High Arctic): two from vascular plants, one from seawater and one from freshwater. Phylogenetic analysis, based on the ITS region and the D1/D2 domain of the 28S rRNA gene, identified these four strains as representing two novel species within the genus . The names sp. nov. (MycoBank number: MB 852063) and sp. nov. (MycoBank number: MB 852064) are proposed. These two new species show distinct psychrophilic adaptations, as they exhibit optimal growth at temperatures between 10 and 15°C, while being unable to grow at 25°C. The holotype of sp. nov. is CPCC 300345, and the holotype of sp. nov. is CPCC 300572.

Funding
This study was supported by the:
  • National Microbial Resource Center (Award NMRC-2023-3)
    • Principle Award Recipient: LiyanYu
  • CAMS Innovation Fund for Medical Sciences (Award 2021-I2M-1-055)
    • Principle Award Recipient: YuLiyan
  • National Natural Science Foundation of China (Award 32270013)
    • Principle Award Recipient: TaoZhang
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2024-05-23
2024-06-19
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