Table 3 Antibiotic susceptibility of L. lactis analysed using agar-disc diffusion method
From: Lactococcus lactis M4, a potential host for the expression of heterologous proteins
Antibiotic | Diameter of inhibition zone of strains (mm) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | M2 | M4 | M5 | M6 | M11 | M12 | M14 | M16 | MG1363 | ATCC 11454 |
Ampicillin | 23 | 23 | 22 | 23 | 24 | 26 | 23 | 25 | 21 | 24 |
Bacitracin | 14 | 12 | 13 | 12 | 13 | 18 | 13 | 14 | 16 | 16 |
Chloramphenicol | 17 | 19 | 16 | 16 | 15 | 19 | 17 | 19 | 18 | 14 |
Gentamycin | 13 | 13 | 11 | 11 | 12 | 13 | 13 | 12 | 11 | 10 |
Erythromycin | 20 | 20 | 20 | 18 | 21 | 22 | 19 | 21 | 20 | 21 |
Nitrofurantoin | 13 | 13 | 11 | 11 | 10 | 11 | 10 | 11 | 13 | 11 |
Kanamycin | 14 | 13 | 11 | 11 | 13 | 13 | 13 | 12 | 11 | 11 |
Cefamandole | 19 | 15 | 17 | 18 | 17 | 20 | 17 | 18 | 16 | 20 |
Neomycin | 11 | 11 | 10 | 10 | 12 | 12 | 11 | 11 | 10 | 10 |
Nalidixic acid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Novobiocin | 13 | 14 | 13 | 14 | 12 | 18 | 16 | 13 | 15 | 15 |
Oxytetracycline | 10 | 10 | 21 | 23 | 10 | 23 | 18 | 10 | 24 | 25 |
Penicillin G | 23 | 20 | 21 | 22 | 23 | 24 | 22 | 22 | 21 | 24 |
Polymyxin B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Streptomycin | 8 | 8 | 8 | 7 | 8 | 10 | 9 | 9 | 8 | 9 |
Tetracycline | 8 | 8 | 20 | 20 | 8 | 20 | 20 | 8 | 23 | 21 |