Fig. 4.

Utilization of a mixture of l-arabinose and d-glucose by aerobically growing cells of recombinant strains expressing citrate synthase (a), pyruvate kinase (b), or phosphofructokinase (c) genes. Recombinant strains were grown aerobically to late log phase in A medium (containing 20 g/L of l-arabinose and 20 g/L of d-glucose) and then inoculated to an initial OD₆₀₀ of 0.2 into mineral salt BT medium containing l-arabinose and d-glucose (15 g/L each) as the carbon sources. Cell growth (squares) and the concentrations of l-arabinose (triangles) and d-glucose (circles) are indicated. Data are average ± standard deviation calculated from the results of triplicate individual experiments