MOESM3 of Development of a strictly regulated xylose-induced expression system in Streptomyces

Additional file 3: Figure S3. (A) Chitobiase activity and (B) optical density (600 nm) of S. lividans XCPR after 48, 72, and 96 h cultivation. After 48 h, D-xylose was added to a final concentration of 0.0, 0.5, 1.0, and 2.0%. Cultivation was continued for 24 and 48 h (72 and 96 h total).