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. 2008 Feb 5;35(6):569–578. doi: 10.1007/s10295-008-0318-9

Fig. 3.

Fig. 3

Proposed pathways for the catabolism of xylose, adapted from Schneider (1989) [21]. XI xylose isomerase, XR xylose reductase, XDH xylitol dehydrogenase, XK xylulose kinase. Pyruvate functions as substrate for growth (a), fermentation (b) and/or respiration (c)