Mrakia panshiensis sp. nov. a new member of the Cystofilobasidiales from soil in China, and description of the teleomorphic-stage of M. arctica

By

Zhang, Kai-Hong
Shi, Cheng-Feng
Chai, Chun-Yue
Hui, Feng-Li

Type

Article

Date of Publication

2020

Original Publication

MycoKeys

Volume

74

Pages

75--90

Subjects

Cystofilobasidiales , Mrakiaceae , one new species , soil-inhabiting yeasts , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.74.53433

 

Abstract

In a study on the fungal diversity in Northeast China, twelve yeast isolates were obtained from soils collected in three provinces, Helongjiang, Jilin and Liaoning. Morphological assessment and phylogenetic analyses of the nuc rDNA internal transcribed spacer (ITS) region and the D1/D2 domains of the nuc 28S rDNA (nuc 28S) gene of the 12 cultures placed them in the genus Mrakia, namely Mrakia aquatica, Mrakia arctica, Mrakia frigida, Mrakia gelida and Mrakia robertii. A total of three isolates represented a hitherto undescribed species, which is described here as M. panshiensissp. nov. (MB 834813). The species M. panshiensissp. nov. shares several morphological characters with M. niccombsii, M. aquatica, M. fibulata and M. hoshinonis. These species can be distinguished based on physiological traits and pairwise rDNA sequence similarities. The study also describes for the first time the formation of teliospores by previously described M. arctica.