Table 4. Minimum inhibitory concentrations of antibiotics toward P. aeruginosa strains grown on LB agar.

MIC (µg/ml)
Strain	Amikacin	Tobramycin	Polymixin B	Colistin	Ceftazidime	Ciprofloxacin	Meropenem
PAO1	6.67	1.41	2.83	4.17	4.33	0.21	0.25
PA2572	>254	32	4.67	10	2.33	0.21	0.29
PA2573	122.67	14	1.83	1.67	3.83	0.25	0.38
pPA2572	11.33	1.83	4	7.33	4.33	0.21	0.46
pPA2573	10	2	2.67	4	4	0.29	0.38

MICs were measured using Antibiotic E-test strips (Biomerieux) and results shown are the average of 6 independent experiments.