两株新型产油担子菌酵母新种， sp. nov. 和 sp. nov.。

sp. nov. and sp. nov., two novel oleaginous basidiomycetous yeast species.

机构信息

Office of Society Academia Collaboration for Innovation, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.

Department of Food and Agriculture Science, Graduate School of Agriculture, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu, Shiga 520-2194, Japan.

出版信息

Int J Syst Evol Microbiol. 2023 Sep;73(9). doi: 10.1099/ijsem.0.006027.

DOI:10.1099/ijsem.0.006027

PMID:37728232

Abstract

Three strains of novel oleaginous yeast species were isolated from soil samples collected in Shiga Prefecture, Japan. The sequences of the internal transcribed spacer (ITS) region and the D1/D2 region of the large subunit (LSU) of the rRNA genes indicated that these novel yeast species are members of the genus . The results of molecular phylogenetic analysis indicated that strains 38-3 and 8s1 were closely related to . They differed by 10 nucleotide substitutions and one gap (1.77 %) in the D1/D2 region of the LSU of the rRNA genes and by 17-18 nucleotide substitutions and 10-11 gaps (5.45-5.85 %) in the ITS region. Strain 51-4 differed from the type strain of the most closely related species, , by 26 nucleotide substitutions (4.46 %) in the D1/D2 region of the LSU of the rRNA genes and by 20 nucleotide substitutions and six gaps (5.42 %) in the ITS region. The names proposed for these previously undescribed species are sp. nov. and sp. nov.

摘要

三株新型产油酵母从日本滋贺县采集的土壤样本中分离得到。内部转录间隔区（ITS）和大亚基（LSU）rRNA 基因的 D1/D2 区序列表明，这些新型酵母是属的成员。分子系统发育分析的结果表明，菌株 38-3 和 8s1 与关系密切。它们在 LSU 的 D1/D2 区有 10 个核苷酸取代和一个缺口（1.77%），在 ITS 区有 17-18 个核苷酸取代和 10-11 个缺口（5.45-5.85%）。菌株 51-4 与亲缘关系最密切的模式种，在 LSU 的 D1/D2 区有 26 个核苷酸取代（4.46%），在 ITS 区有 20 个核苷酸取代和 6 个缺口（5.42%）。这些尚未描述的新物种的命名为 sp. nov. 和 sp. nov.。