Kinetics of 2,3-DMP (□), 3,4-DMP (▪), 3,4-DMC (○), and 4,5-DMC (•) production by a mixture of cells expressing ToMO (1.5 mU/ml) and PH (1.5 mU/ml) (A) and a mixture of cells expressing (E103G)-ToMO (1.5 mU/ml) and PH (1.5 mU/ml) (B) in the presence of 20 μM o-xylene.