Open AccessTeunomyces basidiocarpi sp. nov. and Teunomyces luguensis sp. nov., two ascomycetous yeast species related to the Candida kruisii clade isolated in Taiwan
Author(s) -
ChinFeng Chang,
Yiru Liu,
Ching-Fu Lee
Publication year - 2020
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.004021
Subject(s) - biology , clade , yeast , taxonomy (biology) , microbiology and biotechnology , botany , zoology , phylogenetics , gene , genetics
Four strains of anamorphic yeasts isolated from the fruiting bodies of mushrooms collected in Taiwan were found to represent two novel yeast species belonging to the genus Teunomyces , which was formally known as the Candida kruisii clade. Strains NY13M09 T and NY14M14 were related to the type strains of Teunomyces panamensis , T. pallodes , T. tritomae and T. lycoperdinae , and strains GG4M07 T and GG6M14 were related to T. kruisii NRRL Y-17087 T and T. cretensis NRRL Y-27777 T . However, strains NY13M09 T and NY14M14 differed from their closest phylogenetic neighbours by 2.9–3.7 % in the D1/D2 domain sequence of the LSU rRNA gene and by 6.6–13.7 % in the internal transcribed spacer (ITS); GG4M07 T and GG6M14 differed from their closest known species by 2.4 % in the D1/D2 domain sequence of the LSU rRNA gene and by 8.7–10.0 % in the ITS. Meanwhile, these strains were also clearly distinguished from their closest relatives based on the results of physiological tests. Based on the characteristics described above, the strains could be regarded as representing two novel species of the genus Teunomyces , for which the names Teunomyces basidiocarpi sp. nov. and Teunomyces luguensis sp. nov. are proposed. The holotypes are Teunomyces basidiocarpi BCRC 23475 T and Teunomyces luguensis BCRC 23476 T .