Mrakia terrae sp. nov. and Mrakia soli sp. nov., Two Novel Basidiomycetous Yeast Species Isolated from Soil in Korea.

Three strains, YP416 ^T , YP421 ^T, and Y422, were isolated from soil samples in Pocheon City, Gyeonggi province, South Korea. The strains belong to two novel yeast species in the genus Mrakia . Molecular phylogenetic analysis showed that the strain YP416 ^T was closely related to Mrakia niccombsii . Still, it differed by 9 nucleotide substitutions with no gap (1.51%) in the D1/D2 domain of the LSU rRNA gene and 14 nucleotide substitutions with 7 gaps (2.36%) in the ITS region. The strain YP421 ^T differed from the type strain of the most closely related species, Mrakia aquatica , by 5 nucleotide substitutions with no gap (0.81%) in the D1/D2 domain of the LSU rRNA gene and 9 nucleotide substitutions with one gap (1.43%) in the ITS region. The names Mrakia terrae sp. nov. and Mrakia soli sp. nov. are proposed, with type strains YP416 ^T (KCTC 27886 ^T ) and YP421 ^T (KCTC 27890 ^T ), respectively. MycoBank numbers of the strains YP416 ^T and YP421 ^T are MB 836844 and MB 836847, respectively.
Competing Interests: No potential conflict of interest was reported by the author(s).
(© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of the Korean Society of Mycology.)