Huang Lin-Na, Xi Zhi-Wen, Zhai Yi-Chang, Chai Chun-Yue, Hui Feng-Li
School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China.
Int J Syst Evol Microbiol. 2019 Sep;69(9):2658-2661. doi: 10.1099/ijsem.0.003501.
Three strains of a novel yeast species were isolated from rotting wood in the Xishuangbanna Tropical Rainforest, Yunnan Province, PR China. Sequence analysis of the D1/D2 domains of the large subunit rRNA gene and the internal transcribed spacer (ITS) regions showed that the novel species represents a member of the genus . It differed from its closest known species, CBS 10931, by 1.3 % nucleotide substitutions in the D1/D2 domains and by 2.2 % nucleotide substitutions in the ITS regions, respectively. In contrast to , the novel yeast species was unable to assimilate glycerol, dl-lactate, succinate and citrate, and grow at 37 °C. The name sp. nov. is proposed to accommodate these strains, with NYNU 1797 as the holotype.
从中国云南省西双版纳热带雨林的腐烂木材中分离出三株新型酵母菌株。对大亚基rRNA基因的D1/D2结构域和内部转录间隔区（ITS）区域进行序列分析表明，该新物种属于 属的一个成员。它与其最接近的已知物种CBS 10931在D1/D2结构域中的核苷酸替换率分别为1.3%，在ITS区域中的核苷酸替换率为2.2%。与 相比，该新型酵母菌株不能同化甘油、dl-乳酸、琥珀酸和柠檬酸盐，也不能在37°C下生长。建议将这些菌株命名为 sp. nov.，以NYNU 1797作为模式菌株。
