1887

Abstract

Xylan is a major component of hemicellulose, which constitutes about 40 % of plant biomass. Hydrolysis of xylan into simple sugars is one of the important steps in the conversion of lignocellulosic material to value-added products. During an investigation of cellulose- and xylan-degrading yeasts, two yeast strains that were able to use cellulose and xylan as sole carbon source were found to represent a phylogenetically distinct species in the clade. The closest species in terms of pairwise sequence similarity in the D1/D2 domain of the LSU rRNA gene was . The novel species can be distinguished from the other species in the clade based on the ability to assimilate methanol and raffinose, growth in medium containing 60 % glucose, and growth at 42 °C. It ferments glucose but not other carbohydrates. The name sp. nov. is proposed for this species. The type strain is KU-Xn11 ( = NBRC 106499  = BCC 34694  = CBS 11761).

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2011-05-01
2020-01-19
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