Mrakia stelviica sp. nov. and Mrakia montana sp. nov., two novel basidiomycetous yeast species iso-lated from cold environments
Author(s)
Date Issued
2020
Type
article
Volume
70
Issue
8
Start Page
4704
End Page
4713
Abstract
Five yeast strains were isolated from soil and sediments collected from Alps and Apennines glaciers during sampling cam- paigns carried out in summer 2007 and 2017, respectively. Based on morphological and physiological tests and on phylogenetic analyses reconstructed with ITS and D1/D2 sequences, the five strains were considered to belong to two related but hitherto unknown species within the genus Mrakia, in an intermediate position between Mrakia cryoconiti and Mrakia arctica. The names Mrakia stelviica (holotype DBVPG 10734T) and Mrakia montana (holotype DBVPG 10736T) are proposed for the two novel species and a detailed description of their morphological, physiological and phylogenetic features are presented. Both species fer- mented glucose, sucrose and trehalose, which is an uncommon feature in basidiomycetous yeasts, and showed septate hyphae with teliospore formation.
Subjects
Project(s)
PRIN - 'Response of alpine ecosystems to climatic changes (RESACC)'.