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Table 2 Phenotypic characterization of P. aeruginosa RP isolates and prototype strains

From: Comparative genomics and biological characterization of sequential Pseudomonas aeruginosa isolates from persistent airways infection

Strain

Mucoidy

Twitching* (ø cm)

Swarming* (ø cm)

Protease (ø cm)

Siderophore (ø cm)

LasR henotype§

Pyocyanin #

Biofilm°

Antibiotic resistance

RP1

-

2.3

3.4

2.1

1.2

-

0.094 ± 0.016

0.332 ± 0.141

-

RP45

-

-

-

-

-

+

0.051 ± 0.015

0.493 ± 0.146

GEN

RP73

-

-

-

-

1.3

+

0.05 ± 0.013

1.289 ± 0.596

AMK; CAZ; GEN; IMP; MER

PAO1

-

1.2

2.6

1.8

2.0

-

0.127 ± 0.015

1.719 ± 0.217

-

PA14

-

1.2

5

2.1

2.0

-

0.09 ± 0

3.553 ± 0.457

-

  1. *Indicates twitching and swarming motility zone diameter, as measured by subsurface stab assay
  2. §Isolates with iridescent and metallic sheen of the colony surface, that is typical for a lasR mutant, are indicated (+)
  3. #Indicates mean value ± SD at 26 h. Values ≤ 0.05 indicate no production of pyocyanin
  4. °Indicates mean value ± SD at 24 h
  5. AMK amikacin, CAZ ceftazidime, GEN gentamicin, IMP imipenem, MER meropenem