sp. nov., a xylose-fermenting yeast isolated from gut of passalid beetles and rotting wood in the Amazonian rainforest biome.

Two yeast isolates of a novel d-xylose-fermenting species were obtained from rotting wood and gut of a passalid beetle collected in the Brazilian Amazonian Rainforest biome. Sequence analysis of the internal transcribed spacer-5.8S region and the D1/D2 domains of the LSU rRNA gene showed that the isolates represent a novel species of the genus , phylogenetically related to . The yeast produced asci with a single malformed elongated ascospore with curved ends. The name sp. nov. is proposed to accommodate the novel species. The holotype of is CBS 14235 (MycoBank MB859328). Notably, demonstrated the ability to produce ethanol and xylitol from d-xylose, a biotechnologically valuable trait.