American Society for Microbiology
Genetic data suggest that the oligotrophic freshwater bacterium Caulobacter crescentus metabolizes D-xylose through a pathway yielding -ketoglutarate, comparable to the recently described L-arabinose degradation pathway of Azospirillum brasilense. Enzymes of the C. crescentus pathway, including an NAD -dependent xylose dehydrogenase, are encoded in the xylose-inducible xylXABCD operon (CC0823-CC0819).
Craig Stephens, Beat Christen, Thomas Fuchs, Vidyodhaya Sundaram, Kelly Watanabe and Urs Jena. Genetic Analysis of a Novel Pathway for d-Xylose Metabolism in Caulobacter crescentus. J. Bacteriol. 2007, 189(5):2181. DOI: 10.1128/JB.01438-06.