Table 2.

Antibiotic susceptibility of P. aeruginosa wild-type and CDF-mutant strains.

Strain	MIC (μg/ml)
	aCP	GM	CIP	IMI
PAO1	256	1	1	2
aitP::dTn5	256	1	1	2
czcD::dTn5	128	0.5	0.125	0.5
yiiP::dTn5	128	0.5	0.125	0.5
DM011b	128	0.5	0.125	0.5
DM013	128	0.5	0.125	0.5
C-czcD	256	N.D.c	1	2
C-yiiP	256	N.D.	1	2

^aCP, chloramphenicol; GM, gentamicin; CIP, ciprofloxacin; IMI, imipenem.

^bIn this nomenclature the first digit correspond to zntA gene, the second to pvdA gene and the third to CDF genes. Zero means no mutation of the gene while 1 indicates mutation of the gene. For CDFs, 1 means czcD mutation, and 3 means yiiP mutation.

^cN.D., not determined.