f.a.，sp. nov.，一种从植物叶片中分离得到的无性酵母种。

f.a., sp. nov., an anamorphic yeast species isolated from plant leaves.

机构信息

School of Life Science, Nanyang Normal University, Nanyang 473061, PR China.

出版信息

Int J Syst Evol Microbiol. 2024 Sep;74(9). doi: 10.1099/ijsem.0.006487.

DOI:10.1099/ijsem.0.006487

Abstract

Two yeast strains, NYNU 236122 and NYNU 236180, were isolated from plant leaves collected in Tianchi Mountain, Henan Province, central China. Molecular phylogenetic analyses revealed the closest relatives of the strains are three described species, , , and . Genetically, the isolated strains differed from the type strains of their three related species by 2-11(0.2-1.8%) base substitutions in the D1/D2 domain, 16-40 (2.6-5.6%) base mismatches in the internal transcribed spacer region, and more than 10.1% base substitutions in the partial gene. Furthermore, the two strains differ physiologically from their closest related species, , in their ability to assimilate dl-lactate, nitrite, and l-lysine and their inability to assimilate nitrate. Additionally, they differ from and in their ability to assimilate inulin, d-gluconate, and l-lysine. The species name of f.a., sp. nov. is proposed with holotype CICC 33616 (Mycobank MB 853544).

摘要

两株酵母菌株，NYNU 236122 和 NYNU 236180，从中国中部河南省天池山采集的植物叶片中分离出来。分子系统发育分析表明，这些菌株与三个已描述的种最为接近，即、和。在遗传上，与三个相关种的模式菌株相比，分离株在 D1/D2 区有 2-11（0.2-1.8%）个碱基取代，在内部转录间隔区有 16-40（2.6-5.6%）个碱基错配，在部分基因中有超过 10.1%的碱基取代。此外，这两个菌株在生理上与最接近的相关种不同，表现在它们能够同化 dl-乳酸、亚硝酸盐和 l-赖氨酸，而不能同化硝酸盐。此外，它们在同化菊粉、d-葡萄糖酸盐和 l-赖氨酸方面也与和不同。提议用模式菌株 CICC 33616（Mycobank MB 853544）作为新种的模式种，种名暂定为 f.a.，sp. nov.。