The genes involved in pentose metabolism of N. crassa. (A) General scheme for pentose catabolic pathway in fungi. (B) Growth of strains carrying a deletion of genes involved in the xylose catabolic pathway on BDES plate  plus 2% D-xylose for 3 days. (C) Growth of strains carrying a deletion of the gene involved in the L-arabinose catabolic pathway on BDES plate plus 2% L-arabinose for 5 days. XR, D-xylose reductase, NCU08384: XDH, xylitol dehydrogenase, NCU00891; LAD, L-arabitol dehydrogenase, NCU00643; LXR, L-xylulose reductase, NCU09041; NADH, nicotinamide adenine dinucleotide, reduced; NADPH, nicotinamide adenine dinucleotide phosphate, reduced; WT, wild-type. The length of the scale is about 0.5 cm.