RECOMBINANT YEASTS FOR EFFECTIVE FERMENTATION OF GLUCOSE ANDXYLOSE

摘要

Described are recombinant yeasts containing genes encoding xylose reductase, xylitol dehydrogenase and xylulokinase, and DNA molecules, vectors and methods useful for producing such yeasts. The recombi nant yeasts effectively ferment xylose to ethanol, and preferred yeasts are capable of simultaneously fermenting glucose and xylose to ethanol thereby taking full advantage of these two s ugar sources as they are found in agricultural biomass.