School of Life Science, Nanyang Normal University, Nanyang 473061, PR China.
Int J Syst Evol Microbiol. 2024 Aug;74(8). doi: 10.1099/ijsem.0.006507.
Two yeast strains were isolated from rotting wood samples collected on Qingyuan Mountain, Fujian Province, PR China. Phylogenetic analysis, based on the concatenated sequences of the internal transcribed spacer (ITS) region and the D1/D2 domain of the large subunit rRNA gene, revealed that these two strains represent a novel species of the genus . The proposed name for this new species is f.a., sp. nov. (holotype: GDMCC 2.300; ex-type: PYCC 9925) although the formation of ascospores was not observed. The novel species differs from its close relative by 7.7% sequence divergence (37 substitutions and seven indels) in the D1/D2 domain and 9.7% sequence divergence (42 substitutions and 34 indels) in the ITS region, respectively. Additionally, differs from its close relative by its ability to grow in cellobiose, l-rhamnose, ribitol, galactitol, and dl-lactate, its growth at 37 °C, and its inability to ferment raffinose. The Mycobank number is MB 854693.
从中国福建省清源山采集的腐烂木材样本中分离出两株酵母菌株。基于内部转录间隔区（ITS）区域和大亚基 rRNA 基因的 D1/D2 结构域的串联序列的系统发育分析表明，这两株菌株代表了 的一个新种。这个新种的名称为 f.a.，sp. nov.（模式：GDMCC 2.300；正模式：PYCC 9925），尽管没有观察到子囊孢子的形成。该新种与亲缘关系密切的种 在 D1/D2 结构域的序列差异为 7.7%（37 个替换和 7 个插入/缺失），在 ITS 区域的序列差异为 9.7%（42 个替换和 34 个插入/缺失）。此外，它还能在纤维二糖、l-鼠李糖、肌醇、半乳糖醇和 dl-乳酸中生长、在 37°C 下生长以及不能发酵棉子糖，这些特征使其与亲缘关系密切的种 相区别。Mycobank 编号为 MB 854693。
