Journal
JOURNAL OF FUNGI
Volume 8, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/jof8030224
Keywords
ascomycetous yeast; Crinitomyces flavificans comb; nov; Crinitomyces ghanaensis comb; nov; four new taxa; Crinitomyces reliqui gen; nov; sp; nov
Categories
Funding
- Kasetsart University Research and Development Institute (KURDI) [FF(KU)18.64]
- Hungarian Ministry for Innovation and Technology
- European Union
- European Social Fund [EFOP-3.6.3-VEKOP-16-2017-00005]
- Royal Golden Jubilee PhD programme [PHD/0070/2560]
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The systematic position of 16 yeast strains isolated from different countries were evaluated using various analyses, leading to the discovery of a new yeast species and the reassignment of two existing species. The close relationship between certain yeast species was unexpected and required further clarification. Morphological and physiological characteristics were shared among the three yeast species. The findings contribute to a better understanding of yeast taxonomy and evolution.
The systematic position of 16 yeast strains isolated from Thailand, Hungary, The Netherlands, and the Republic of Poland were evaluated using morphological, physiological, and phylogenetic analyses. Based on the similarity of the D1/D2 domain of the LSU rRNA gene, the strains were assigned to two distinct species, Trichosporiella flavificans and representatives of a new yeast species. Phylogenetic analyses revealed that Candida ghanaensis CBS 8798(T) showed a strong relationship with the aforementioned two species. The more fascinating issue is that Candida and Trichosporiella genera have been placed in different subphyla, Saccharomycotina and Pezizomycotina, respectively. The close relationship between Trichosporiella flavificans, Candida ghanaensis and the undescribed species was unexpected and needed to be clarified. As for morphological and physiological characteristics, the three yeast species shared a hairy colony appearance and an ability to assimilate 18 carbon sources. Based on phylogenetic analyses carried out in the present study, Crinitomyces gen. nov. was proposed to accommodate the new yeast species, Crinitomyces reliqui sp. nov. (Holotype: TBRC 15054, Isotypes: DMKU-FW23-23 and PYCC 9001). In addition, the two species Trichosporiella flavificans and Candida ghanaensis were reassigned to the genus Crinitomyces as, Crinitomyces flavificans (Type: CBS 760.79) comb. nov. and Crinitomyces ghanaensis (Type: CBS 8798) comb. nov., respectively.
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