TABLE 3.

Oxygen consumption studies with Sphingomonas sp. strain UG30

Prepn	O2 consumption rate (μmol of O2/g [fresh wt] of cells/min)
	Control cells	PCP-pretreated cells
Control	0.87	0.80
PCP (25 μg/ml)	1.29	1.24
PCP (50 μg/ml)	1.61	1.90
PCP (75 μg/ml)	1.43	1.28
PCP (100 μg/ml)	0.96	1.02
Glutamate control	6.03	5.54
Glutamate + PCP (25 μg/ml)	5.36	5.11
Glutamate + PCP (50 μg/ml)	5.06	4.09
Glutamate + PCP (75 μg/ml)	3.19	2.30
Glutamate + PCP (100 μg/ml)	1.29	1.58