Microbotryozyma lacustris sp. nov. (Basidiomycota, Ustilentylomataceae) and Cyberlindnera basumtsoensis sp. nov. (Ascomycota, Phaffomycetaceae), two novel yeasts isolated from freshwater Lake Basom Tso, China

By

Tian, Lin
Phurbu, Dorji
Zheng, Yan-Yan

Type

Article

Date of Publication

2025-12-15

Original Publication

MycoKeys

Volume

126

Pages

135--150

Subjects

Basom Lake , Cyberlindnera , Microbotryozyma , novel species , Phylogeny

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.126.173807

 

Abstract

<br> High-altitude lakes in Tibet represent unique and underexplored reservoirs of microbial diversity. An investigation of yeast diversity in Basom Lake, a high-altitude lake in Tibet, China, led to the discovery of two novel species:<br> Microbotryozyma lacustris<br> sp. nov.<br> and<br> Cyberlindnera basumtsoensis<br> sp. nov.<br> Phylogenetic analyses of the ITS region and D1/D2 LSU rRNA gene sequences, complemented by phenotypic characterization, confirmed their distinct taxonomic status.<br> Microbotryozyma lacustris<br> represents the third species described in its genus and the first documented occurrence of<br> Microbotryozyma<br> in a freshwater habitat.<br> Cyberlindnera basumtsoensis<br> further expands the ecological diversity of the genus<br> Cyberlindnera<br> . This study significantly enriches the taxonomic framework of both genera and underscores the value of high-altitude lakes as reservoirs of novel yeast diversity.<br>