Sugar consumption of Neurospora crassa mycelia precultivated on Vogel’s minimal medium with 2% D-glucose for 16 h then transferred to minimal medium with the following sugar mixtures (all 0.5%). (A) D-glucose and D-xylose, (B) D-glucose and L-arabinose, (C) D-xylose and L-arabinose. (D) The grow rate of wild-type (WT) on each of three monosacchrides. The mycelia, which were pre-cultured on D-glucose for 16 h were washed, transferred to minimal medium supplemented with 0.5% D-glucose, 0.5% D-xylose or 0.5% L-arabinose, respectively, and the dry weight of the mycelia were determined as growth biomass at different intervals. The values are the means of two independent experiments.