Table 1.

Phenotypic characterization of clinical and PA14 strains.

Bacterial Strain	Pyocyanin (OD 520 nm)	Protease Activity (OD 400 nm)	Biofilm 24 h a (OD 590 nm)	Biofilm 48 h b (OD 590 nm)	Swarming Motility c	Swimming Motility c
PA14	0.178 ± 0.042	2.037 ± 0.020	3.561 ± 0.357	13.470 ± 1.403	+++	+++
23P	0.148 ± 0.024	1.988 ± 0.057	3.175 ± 0.851	0.738 ± 0.373	+++	+++
27P	0.102 ± 0.005	2.175 ± 0.036	1.429 ± 0.643	3.049 ± 0.796	+++	+++
31P	0.063 ± 0.031	1.915 ± 0.001	1.741 ± 0.154	5.133 ± 0.946	+++	+++
32P	0.121 ± 0.037	2.439 ± 0.078	1.117 ± 0.163	5.597 ± 1.390	+++	+++
40P	0.160 ± 0.041	2.064 ± 0.058	0.970 ± 0.201	2.172 ± 0.194	+++	+++

^a Biofilm production during an incubation period of 24 h without medium replacement. ^b Biofilm production during an incubation period of 48 h with medium replacement after 24 h. ^c Motility zone (mm) < 15 mm; +++ motility zone (mm) > 30 mm.