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- Title
Talaromyces sedimenticola sp. nov., isolated from the Mariana Trench.
- Authors
Zhou, Hongbo; Xu, Liting; Liu, Wenxian; Ta, Kaiwen; Wang, Xincun; Guo, Jianwei; Luo, Wenxi; Peng, Zhiyuan; Huang, Qiaoni; Wang, Yuguang
- Abstract
Two fungal strains (K-2T and S1) were isolated from the deepest ocean sediment of the Challenger Deep located in the Mariana Trench. The internal transcribed spacer (ITS) gene sequences of the isolates K-2T and S1 differed from those of closely related species, such as Talaromyces assiutensis and T. trachyspermus. Phylogenetic analyses based on single and concatenated alignments of the genes, namely ITS, β-tubulin (benA), calmodulin (cam), and the second-largest subunit fragment of the RNA polymerase II (rpb2) showed that the isolates K-2T and S1 were clustered together with other Talaromyces species, such as T. trachyspermus and T. assiutensis, as evidenced by the position on a terminal branch with high bootstrap support. They could also be distinguished from their closest relatives with valid published names via morphological and physiological characteristics, for example, growth at 4 °C–50 °C with a pH in the range of 1.5–12. Based on their phylogenetic, morphological, and physicochemical properties, the isolates K-2T and S1 represent a novel species in the genus Talaromyces, and the proposed name is Talaromyces sedimenticola sp. nov. The type strain is K-2T (= GDMCC 3.746T = JCM 39451T).
- Subjects
MARIANA Trench; TALAROMYCES; RNA polymerase II; CALMODULIN; RNA polymerases; TUBULINS; TRENCHES
- Publication
Antonie van Leeuwenhoek, 2024, Vol 117, Issue 1, p1
- ISSN
0003-6072
- Publication type
Article
- DOI
10.1007/s10482-024-01945-1