| abstract |
A microorganism of the genus Zymomonas containing exogenous genes encoding xylose isomerase, xylulokinase, L-arabinose isomerase, L-ribulokinase, L-ribulose-5-phosphate 4-epimerase, transaldolase and transketolase and further comprising at least one promotor recognized by Zymomonas which regulates the expression of at least one of the genes, wherein the microorganism is capable of growing on arabinose and xylose as carbon sources and fermenting the arabinose and xylose to ethanol in about 75 % theoretical yield and, wherein the microorganism without the genes is incapable of growing on or fermenting the arabinose and xylose to ethanol. |