Table 3.
Antibiotic susceptibility profile of Antarctic bacteria C1-4-7, D2-4-6, and M1-4-11.
| Antibiotics | μg | C1-4-7 | D2-4-6 | M1-4-11 | |
|---|---|---|---|---|---|
| Penicillins | Ampicillin | 10 | R | R | R |
| Amoxicillin-Clavulanic Acid | 10–20 | R | R | R | |
| Piperacillin-Tazobactam | 10–100 | S | S | S | |
| Cephalosporins | Cefuroxime | 30 | R | R | R |
| Ceftazidime | 30 | S | S | S | |
| Cefepime | 30 | S | I | I | |
| Cefotaxime | 30 | R | R | R | |
| Ceftriaxone | 30 | R | S | R | |
| Aminoglycosides | Amikacin | 30 | S | S | S |
| Gentamicin | 10 | S | S | S | |
| Kanamycin | 30 | S | S | S | |
| Streptomycin | 10 | I | R | S | |
| Quinolones | Ciprofloxacin | 5 | S | S | S |
| Nalidixic acid | 30 | S | I | S | |
| Levofloxacin | 5 | S | S | S | |
| Sulfonamides | Sulfafurazole | 300 | R | R | I |
| Cotrimoxazole | 25 | R | I | R | |
| Carbapenems | Ertapenem | 10 | R | R | R |
| Meropenem | 10 | S | R | S | |
| Imipenem | 10 | S | S | S | |
| Others | Trimethoprim | 5 | R | R | R |
| Chloramphenicol | 30 | R | R | R | |
| Tetracycline | 30 | S | I | S | |
| Bacitracin | 0.04 U | R | R | R |
S: sensitive (≥21 mm); I: intermediate (16–20 mm); R: resistant (≤15 mm).