TY - JA AU - Wei Wang AU - Hui Wei AU - Alahuhta,M. AU - Xiaowen Chen AU - Hyman,D. AU - Johnson,D.K. AU - Min Zhang AU - Himmel,M.E. TI - Heterologous expression of xylanase enzymes in lipogenic yeast Yarrowia lipolytica SN - 1932-6203 PY - 2014/// CY - San Francisco, CA (USA) PB - Public Library of Science KW - Xylose KW - AGROVOC KW - Gene Expression KW - Yarrowia lipolytica KW - Yeasts N1 - Peer review; Open Access N2 - To develop a direct microbial sugar conversion platform for the production of lipids, drop-in fuels and chemicals from cellulosic biomass substrate, we chose Yarrowia lipolytica as a viable demonstration strain. Y. lipolytica is known to accumulate lipids intracellularly and is capable of metabolizing sugars to produce lipids; however, it lacks the lignocellulose-degrading enzymes needed to break down biomass directly. While research is continuing on the development of a Y. lipolytica strain able to degrade cellulose, in this study, we present successful expression of several xylanases in Y. lipolytica. The XynII and XlnD expressing Yarrowia strains exhibited an ability to grow on xylan mineral plates. This was shown by Congo Red staining of halo zones on xylan mineral plates. Enzymatic activity tests further demonstrated active expression of XynII and XlnD in Y. lipolytica. Furthermore, synergistic action in converting xylan to xylose was observed when XlnD acted in concert with XynII. The successful expression of these xylanases in Yarrowia further advances us toward our goal to develop a direct microbial conversion process using this organism UR - https://doi.org/10.1371/journal.pone.0111443 DO - https://doi.org/10.1371/journal.pone.0111443 T2 - PLoS ONE ER -