Three yeast strains of Yamadazyma dushanensis f.a., sp. nov. were isolated from rotten wood samples collected in the Dushan Forest Park, Nanyang, Henan Province, China. Sequence analyses of the D1/D2 domains of the large subunit rRNA gene and the internal transcribed spacer (ITS) regions revealed that this new species is located in the Yamadazyma clade (Debaryomycetaceae and Saccharomycetales), with three closely related species, namely, Yamadazyma terventina, Yamadazyma mexicana and Candida trypodendroni. The novel species differed from these three described species by 5-6 nt substitutions in the D1/D2 sequences. However, the ITS sequences of the new species were quite divergent from those of Y. terventina, Y. mexicana and C. trypodendroni with 12-18 nt substitutions. This new yeast species could assimilate cellobiose and other compounds related to rotting wood. The fermentation of cellobiose in Durham tubes was observed for the strains of this new yeast. The new species could also be distinguished from its closely related species, Y. terventina, Y. mexicana and C. trypodendroni, based on a number of morphological and physiological characteristics. The type strain is Y. dushanensis sp. nov. NYNU 14668 (T) (=CICC 33051(T) = CBS 13914(T)).
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Int J Syst Evol Microbiol
December 2024
Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
Three yeast strains were isolated from an olive paste sample (CBS 18661) and two samples of olive oil (CBS 18662 and CBS 18660) were collected in two different mills in Verona province, Italy. The sequence comparison of the D1/D2 domains of the LSU rRNA gene and the internal transcribed space (ITS) regions indicated that these strains belonged to the genus . Phylogenetic analysis of concatenated sequences of the ITS regions and the D1/D2 domains indicated that they represented members of two distinct species.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
November 2023
Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
Six strains representing two novel ascomycetous yeast species were isolated from mushroom fruiting bodies and cocoa leaves collected in Thailand. Analysis of the internal transcribed spacer (ITS) regions and the D1/D2 domains of the large subunit rRNA gene sequences showed that the six strains were divided into two groups. The first group consisted of four strains (DMKU-SSK46, DMKU-SK1, SCCL3-5 and SCCL19-3), that were closely related to the type strains of , , , and , but with 12-14 (2.
View Article and Find Full Text PDFZootaxa
June 2020
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam.
We describe two new species of the genus Hemiphyllodactylus on the basis of a new collection of geckos from limestone karst forest of Hoa Binh Province, northwestern Vietnam. Hemiphyllodactylus bonkowskii sp. nov.
View Article and Find Full Text PDFZootaxa
August 2020
Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai Road, Hanoi, Vietnam..
A new species of the gekkonid genus Hemiphyllodactylus is described from limestone karst forest of Tuyen Quang Province, northern Vietnam based on morphological differences and molecular divergence. Hemiphyllodactylus nahangensis sp. nov.
View Article and Find Full Text PDFCurr Microbiol
August 2015
School of Life Science and Technology, Nanyang Normal University, Nanyang, People's Republic of China.
Three yeast strains of Yamadazyma dushanensis f.a., sp.
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