TABLE 1.
MICs of antibiotics for S. marcescens SCH909, E. coli C600 transconjugant, and control E. coli ATCC 25922
| Antibiotic | MIC (μg ml−1) for:
|
||
|---|---|---|---|
| E. coli C600 | S. marcescens SCH909 | E. coli C600 transconjugant | |
| Gentamicin | 1 | 64 | 128 |
| Tobramycin | 0.5 | 128 | 128 |
| Amikacin | 1 | 2 | 2 |
| Netilmicin | 0.5 | 8 | 8 |
| Streptomycin | 1 | 64 | 2 |
| Neomycin | 0.5 | 64 | 64 |
| Ampicillin | 4 | >256 | >256 |
| Cefoxitin | 2 | 4 | 16 |
| Imipenem | 0.25 | 0.5 | 0.5 |
| Cephalothin | 4 | 256 | 256 |
| Cefotaxime | 0.06 | 16 | 16 |
| Cefoperazone | 0.12 | 8 | 8 |
| Ceftazidime | 0.25 | 16 | 16 |
| Piperacillin | 1.0 | >128 | >128 |
| Azthreonam | 0.12 | 4 | 4 |
| Norfloxacin | 0.125 | 0.25 | 0.125 |
| Ciprofloxacin | 0.0625 | 0.0625 | 0.0625 |
| Nalidixic acid | >64 | 4 | >64 |
| Chloramphenicol | 4 | 32 | 32 |
| Trimethoprim | 1 | 16 | 16 |
| Sulfamethoxazole | 16 | >512 | >512 |