1. Mrakia polaris sp. nov. and Mrakia amundsenii sp. nov. ( Mrakiaceae , Cystofilobasidiales ), two novel psychrophilic yeast species isolated from Arctic habitats.
- Author
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Zhu Y, Feng J, Zhang Y, Yu L, and Zhang T
- Subjects
- Arctic Regions, Mycological Typing Techniques, Svalbard, RNA, Ribosomal, 28S genetics, Basidiomycota genetics, Basidiomycota classification, Basidiomycota isolation & purification, Fresh Water microbiology, Ecosystem, Cold Temperature, Saccharomycetales classification, Saccharomycetales genetics, Saccharomycetales isolation & purification, Phylogeny, DNA, Fungal genetics, Seawater microbiology, Sequence Analysis, DNA
- Abstract
Four yeast strains belonging to the basidiomycetous yeast genus Mrakia 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 Mrakia . The names Mrakia polaris sp. nov. (MycoBank number: MB 852063) and Mrakia amundsenii 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 M. polaris sp. nov. is CPCC 300345
T , and the holotype of M. amundsenii sp. nov. is CPCC 300572T .- Published
- 2024
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