Fig. 2

Phenotypes of the strain JG207ΔMtcpp on cellobiose in shaking flask. a Profiles of malic acid production. b Transcriptional levels of intracellular β-glucosidase genes (bgl1, bgl2, and bgl3) in strain JG207ΔMtcpp grown on cellobiose for 2 days. The protein concentration (c) and activity of β-glucosidase (d) in the supernatant of JG207ΔMtcpp culture after 4 days on cellobiose. The values and error bars represent means and standard deviations of independent triplicate experiments, respectively