Kinetics of production of o-cresol (□), m- and p-cresols (▪), 3-methylcatechol (○), and 4-methylcatechol (•) by cells expressing ToMO at a concentration of 1 mU/ml (A), cells expressing PH at a concentration of 1 mU/ml (B), and a mixture of cells expressing ToMO (1 mU/ml) and cells expressing PH (1 mU/ml) (C) incubated with 30 μM toluene.