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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 75, Issue 5

sp. nov., a novel ascomycetous yeast species isolated from China and Thailand Open Access

Abstract

A yeast strain isolated from chestnut tree bark collected in Guangshan County, Xinyang, Henan Province, China and a strain isolated from soil collected in Phu Wiang District, Khon Khen Province, Thailand possess identical sequences in the 26S ribosomal RNA gene D1/D2 domain and the internal transcribed spacer (ITS) region. Phylogenetic analysis showed that the two strains belong to the genus and are closely related to but differed from the species by 7 (1.26%, 7 substitutions and 0 gap) and 43 (5.75 %, 31 substitutions and 12 gaps) mismatches in the D1/D2 domain and ITS region, respectively. The result suggests that the Chinese and the Thai strains represent a novel species in the genus , for which the name sp. nov. (holotype strain CGMCC 2.7783) is proposed. This species forms one or two spherical ascospores in persistent asci, usually with tapered protuberances.

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Keyword(s): Ascomycetous yeast , phylogeny , taxonomy and Torulaspora lindneri sp. nov.
Funding
This study was supported by the:
  • Youth Innovation Promotion Association of the Chinese Academy of Sciences (Award 2022087)
    • Principal Award Recipient: Pei-JieHan
  • Science & Technology Fundamental Resources Investigation Program (Award 2023FY101300)
    • Principal Award Recipient: Feng-YanBai
  • National Natural Science Foundation of China (Award 32170006)
    • Principal Award Recipient: Feng-YanBai
© 2025 The Authors
  • 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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2025-05-16
2026-03-07

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Torulaspora lindneri sp. nov., a novel ascomycetous yeast species isolated from China and Thailand
Int J Syst Evol Microbiol 75, 006789 (2025); https://doi.org/10.1099/ijsem.0.006789
/content/journal/ijsem/10.1099/ijsem.0.006789
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