Wang Peng, Chai Chun-Yue, Hui Feng-Li
School of Life Science, Nanyang Normal University, Nanyang 473061, PR China.
Int J Syst Evol Microbiol. 2025 Jun;75(6). doi: 10.1099/ijsem.0.006812.
Two red yeast strains, NYNU 232201 and NYNU 232218, were isolated from the phylloplane of and , respectively, in Sifangjing Village, Pingtang County, Guizhou Province, China. Molecular phylogenetic analyses placed these strains in close relation to , and . Genetically, the isolates differed from the type strains of these related species by seven to nine base substitutions (1.2-1.5%) in the D1/D2 domain and by more than 15 base mismatches (2.6%) in the internal transcribed spacer region. Phenotypically, the two strains can be distinguished from and by their ability to assimilate d-glucosamine and grow at 30 °C, as well as their inability to assimilate ribitol. Physiological data for were not available for comparison. No sexual morph was observed in either strain. Based on molecular and phenotypic differentiation, the novel yeast species sp. nov. is proposed with holotype CICC 33601 (MycoBank MB 857729).
从中国贵州省平塘县四方井村的[植物名称1]和[植物名称2]叶面上分别分离出两株红酵母菌株，NYNU 232201和NYNU 232218。分子系统发育分析表明，这些菌株与[相关物种名称1]、[相关物种名称2]和[相关物种名称3]关系密切。在基因上，这些分离株与这些相关物种的模式菌株在D1/D2结构域有7至9个碱基替换（1.2 - 1.5%），在内转录间隔区有超过15个碱基错配（2.6%）。在表型上，这两株菌株可通过同化d - 葡萄糖胺的能力、在30°C下生长的能力以及不能同化核糖醇的特性与[相关物种名称1]和[相关物种名称2]区分开来。[相关物种名称3]的生理数据无法用于比较。在这两种菌株中均未观察到有性形态。基于分子和表型差异，提出了新的酵母物种[新物种名称]sp. nov.，模式菌株为CICC 33601（MycoBank MB 857729）。
