Fig. 1
From: A novel transcriptional repressor specifically regulates xylanase gene 1 in Trichoderma reesei
Deletion of xtr1 markedly improved xylanase production. A–D Analyses of extracellular xylanase activities of the culture supernatant from the QM9414 and mutant strains including ΔTr119805 (A), ΔTr103230 (B), ΔTr77279 (C) and Δxtr1 (Tr60132) (D) cultivated on 0.5% (w/v) xylan for the indicated time periods. Values are the mean of three biological replicates. Error bars are the SD from these replicates. Significant differences (t-test *P < 0.05, **P < 0.01) were observed in extracellular xylanase activity between QM9414 and Δxtr1