TABLE 3.

Oxygen uptake by washed resting cell suspensions of P. putida mt-2 and of mutants which originated from this strain

Substrate	Oxygen consumption (μmol g of cells [dry weight]−1 min−1) by cells of P. putida:
	mt-2	mt-2M11	mt-2M10	mt-2M4
Benzoate	197	84	269	100
m-Toluate	112	37	22	5.7
p-Toluate	101	—a	—	—

^a—, no activity detectable.