Table 1. MICs* of four CAMPs for the P. luminescens strains.
| Strains | MIC (μg.ml−1) |
|||
|---|---|---|---|---|
| Colistin | Cecropin A | Cecropin B (S. frugiperda) | Polymyxin B | |
| TT01 | >10,000 | >25 | >50 | >250 |
| phoP | 20 | 0.8–1.6 | 6–12 | 1–3 |
| phoP/PlacPhoPQ | >10,000 | >25 | ND | >250 |
| pbgE | <10 | 12 | 6–12 | 1–2 |
| pbgE/PlacpbgPE | ND | >25 | >100 | >250 |
*MICs were determined by culturing bacterial strains for 48 h with various concentrations of insect (cecropins) and non-insect CAMPs (colistin and polymyxin B). All these experiments were performed at least three times.