FIG 3.

Increased cell surface levels of CDT-1 and CDT-2 in 4arrΔ cells lead to increased anaerobic growth and increased cellobiose fermentation for CDT-2-expressing cells. (A) Anaerobic growth curves showing the rate of growth for cells expressing CDT-1 or CDT-2 in BY4741 (WT) and the derivative 9arrΔ and 4arrΔ strains. (B and C) Cellobiose consumption and ethanol production were measured for WT, 9arrΔ, and 4arrΔ strains expressing CDT-1 (B) and CDT-2 (C). The intracellular β-glucosidase (GH1-1) was always coexpressed in the experiments whose results are shown in panels A, B, and C.