TABLE 1.
Antimicrobial susceptibility profiles of P. syringae wild-type strains, ΔmexAB-oprM mutants, and complemented mutants
| Antimicrobial | MIC (μg/ml) for:
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1448A | 1448A. ΔmexAB | 1448A.ΔmexAB/pRK.mexAB | B728a | B728a. ΔmexAB | B728a.ΔmexAB/pRK.mexAB | DC3000 | DC3000. ΔmexAB | DC3000.ΔmexAB/pRK.mexAB | |
| Acridine orange | 250 | 31 | 1,000 | 250 | 12.5 | 500 | 250 | 31 | 500 |
| Acriflavin | 7.8 | 0.3 | 15.6 | 31 | 5 | 62.5 | 31 | 2.5 | 62.5 |
| Ampicillin | 125 | 1.5 | 500 | 62.5 | 3.1 | 500 | 62.5 | 0.8 | 500 |
| Benzalkonium chloride | 25 | 3.1 | 50 | 25 | 6.2 | 25 | 25 | 6.2 | 50 |
| Berberine | 1,000 | 15.6 | >1,000 | 1,000 | 62.5 | >1,000 | 1,000 | 125 | >1,000 |
| Carbenicillin | 1,000 | 6.2 | >1,000 | 1,000 | 12.5 | >1,000 | 500 | 3.1 | >1,000 |
| Cefoperazone | 62.5 | 1.5 | 250 | 125 | 12.5 | 250 | 31 | 1.5 | 125 |
| Chloramphenicol | 25 | 1.5 | 250 | 50 | 6.2 | 250 | 31 | 1.5 | 125 |
| Ciprofloxacin | 1.5 | 0.1 | 10 | 0.3 | 0.01 | 0.3 | 0.06 | 0.01 | 0.3 |
| Clindamycin | 1,000 | 125 | >1,000 | 1,000 | 125 | >1,000 | >1,000 | 250 | >1,000 |
| Crystal violet | 25 | 0.8 | 25 | 25 | 3.1 | 25 | 25 | 1.5 | 50 |
| Daunorubicin | 100 | 6.2 | >100 | >100 | 25 | >100 | >100 | 25 | >100 |
| Erythromycin | 25 | 3.1 | 125 | 100 | 25 | 125 | 12.5 | 3.1 | 31 |
| Ethidium bromide | 100 | 1.5 | 250 | 125 | 6.2 | 125 | 125 | 6.2 | 250 |
| Fusaric acid | 1,000 | 31 | >1,000 | 1,000 | 62.5 | 1,000 | 1,000 | 62.5 | >1,000 |
| Fusidic acid | 500 | 62.5 | >1,000 | 1,000 | 125 | >1,000 | 500 | 62.5 | >1,000 |
| Gentamicin | 1.2 | 0.6 | 0.6 | 1.2 | 0.6 | 0.6 | 0.6 | 0.3 | 0.3 |
| Kanamycin | 1.2 | 0.6 | 1.2 | 2.5 | 2.5 | 1.2 | 0.6 | 1.2 | 0.6 |
| Mitomycin C | 3.1 | 0.1 | 10 | 2.5 | 0.2 | 5 | 1.2 | 0.1 | 5 |
| Nalidixic acid | >1,000 | 31 | >1,000 | 50 | 3.1 | 100 | 25 | 3.1 | 100 |
| Naringenin | >1,000 | 250 | >1,000 | >1,000 | 500 | >1,000 | >1,000 | 250 | >1,000 |
| Nitrofurantoin | 500 | 31 | 500 | 500 | 125 | 500 | 500 | 125 | 500 |
| Norfloxacin | 7.8 | 0.6 | 50 | 0.5 | 0.1 | 1.5 | 0.5 | 0.06 | 3.1 |
| Novobiocin | >1,000 | 31 | >1,000 | 1,000 | 31 | >1,000 | >1,000 | 31 | >1,000 |
| Phloretin | >1,000 | 250 | >1,000 | >1,000 | 500 | >1,000 | >1,000 | 250 | >1,000 |
| Piperacillin | 31 | 0.6 | 62.5 | 62.5 | 3.1 | 125 | 15.6 | 0.3 | 31 |
| Puromycin | 125 | 3.1 | 1,000 | 500 | 31 | 1,000 | 125 | 15.6 | 1,000 |
| Rhodamine 6G | 125 | 1.5 | 500 | 250 | 15.6 | 250 | 500 | 31 | 1,000 |
| Streptomycin | >100 | >100 | >100 | 3.1 | 3.1 | 3.1 | 6.2 | 3.1 | 3.1 |
| Tetracycline | 0.5 | 0.03 | 1 | 0.06 | 0.5 | 0.03 | |||
| Tetraphenylphosphonium chloride | 125 | 1.2 | 500 | 1,000 | 125 | 1,000 | 1,000 | 31 | >1,000 |
| Trimethoprim | 500 | 62.5 | 1,000 | 500 | 62.5 | 1,000 | 125 | 31 | 1,000 |