Table 4.
Phenotypic and genotypic characteristics of P. aeruginosa MDR strains were evaluated in this study
| Strain | Resistance pattern MIC (µg/ml) | ESBL genes | Biofilm | Amonoglycosid e-Modifying enzyme genes | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| GEN | AK | IMP | MEM | CAZ | CIP | COL | ||||
| PA11 | 256 | 64 | 8 | 64 | 128 | 16 | 0 | blaTEM | Strong |
aadA- aadB- rmtA- armA |
| PA17 | 128 | 32 | 4 | 128 | 128 | 32 | 0 | blaTEM | Strong |
aadA- aadB rmtA |
| PA22 | 32 | 32 | 256 | 64 | 128 | 16 | 0 | blaTEM | Strong |
aadA- aadB- rmtA- armA |
| PA31 | 32 | 32 | 256 | 128 | 128 | 128 | 0 | blaTEM | Strong |
aadA- aadB- armA |
| PA42 | 256 | 256 | 256 | 128 | 64 | 32 | 0 | blaTEM | Strong |
aadA- aadB- rmtA- armA |
Abbreviations: AK, amikacin; GM, gentamicin; CAZ, ceftazidime; IMI, imipenem; MEM, meropenem; COL, colistin; MIC, minimum inhibitory concentration; ESBL, extended-spectrum beta-lactamases; P. aeruginosa, Pseudomonas aeruginosa; MDR, multi-drug resistant.