Fig. 3

Influence of Xpp1 on the xylanolytic activities of T. reesei. T. reesei QM6aΔtmus53 (blue bars), the xpp1 deletion strain (green bars), and the xpp1 over-expression strain (yellow bars) were grown in MA medium containing 1% xylan for 48 and 72 h. The endo-xylanolytic activities (a) and the β-xylosidase activity (b) were measured and normalized to the acquired biomass after 72 h. The values provided in the figures are means from three biological experiments. Error bars indicate standard deviations. c Xylan was degraded in vitro with culture supernatants (xylan, 72 h) of T. reesei QM6aΔtmus53 (blue) and the xpp1 deletion strain (green) in a time course experiment. Concentrations of xylopentaose (squares, solid lines), xylotriose (diamonds, dashed lines), and d-xylose (circles, dotted lines) are given.