Barnettozyma menglunensis f.a., sp. nov., a novel yeast species isolated from rotting wood

A novel yeast species is described based on three strains isolated from rotting wood samples from Xishuangbanna Tropical Rainforest in Yunnan Province, PR China. Strain NYNU 1811121 was isolated in Menglun, Mengla, while strains NYNU 18982 and NYNU 181096 were recovered in Mengyang, Jinghong. Analysis of the sequences of the D1/D2 domain of the large subunit rRNA gene and the internal transcribed spacer (ITS) region (ITS1-5.8S- ITS2) revealed that the novel strains were closely related to the type strain of [Candida] sanyiensis, but with 6.9 % nucleotide substitutions in the D1/D2 domain and 8.2% substitutions in the ITS region. The three novel strains can also be distinguished from C. sanyiensis in terms of the ability to assimilate trehalose and D-gluconate and to grow at 35 degrees C, as well as the inability to ferment glucose. Based on molecular analyses and phenotypic characteristics, the name Barnettozyma menglunensis f.a., sp. nov. is proposed with the holotype CBS 16011(T) (MycoBank 845375).

Automated summary

This study describes a novel yeast species isolated from rotting wood samples in Xishuangbanna Tropical Rainforest, Yunnan Province, China. The novel strains are closely related to [Candida] sanyiensis, but with significant nucleotide substitutions in the D1/D2 domain and ITS region. Based on molecular and phenotypic characteristics, the name Barnettozyma menglunensis f.a., sp. nov. is proposed.