Wei Yu-Hua, Guo Liang-Chen, Zhu Hai-Yan, Wen Zhang, Yao Shang-Jie, You Xiao-Long, Fan En-Di, Boundy-Mills Kyria, Sitepu Irnayuli, Bai Feng-Yan, Wang Di-Qiang, Han Pei-Jie
State Key Laboratory of Microbial Diversity and Innovative Utilization, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.
College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China.
Int J Syst Evol Microbiol. 2025 Jul;75(7). doi: 10.1099/ijsem.0.006836.
An orange-coloured yeast strain was recently isolated from rotted leaves in Zunyi City, Guizhou Province, PR China. Phylogenetic analysis revealed that this strain shares identical or similar sequences with no more than two to three nucleotide substitutions in both the 26S rDNA D1/D2 domains and the internal transcribed spacer (ITS) region with three other strains isolated from decayed wood in Indonesia, mushroom in Thailand and a plant of the genus in the Bahamas. Therefore, these strains are conspecific. And they are most closely related to but exhibit sequence divergences of 2.1-2.6% in the 26S rDNA D1/D2 domains and 2.9-3.2% in the ITS region. Physiologically, strain CGMCC 2.7770 differs from in its ability to assimilate maltose, l-arabinose and citric acid. Both the phylogenetic analysis and phenotypic characteristics indicate that those four strains represent a novel species in the genus , for which the name sp. nov. is proposed (holotype CGMCC 2.7770).
最近，从中国贵州省遵义市的腐烂叶片中分离出一株橙色酵母菌株。系统发育分析表明，该菌株在26S rDNA D1/D2结构域和内部转录间隔区（ITS）区域与另外三株分别从印度尼西亚腐朽木材、泰国蘑菇以及巴哈马群岛某属植物中分离出的菌株具有相同或相似的序列，核苷酸替换不超过两到三个。因此，这些菌株是同种的。它们与[具体物种名]关系最为密切，但在26S rDNA D1/D2结构域中表现出2.1 - 2.6%的序列差异，在ITS区域表现出2.9 - 3.2%的序列差异。生理上，菌株CGMCC 2.7770在同化麦芽糖、L - 阿拉伯糖和柠檬酸的能力方面与[具体物种名]不同。系统发育分析和表型特征均表明，这四株菌株代表了[属名]属中的一个新物种，为此提出新物种名称[新物种名] sp. nov.（模式菌株CGMCC 2.7770）。
