| NO | Primer name | Primer sequence | Amplicons size | Reference | |
| 1 | omp W | F | 5’-TGCCTCGGTAGTACCTAATGA-3’ | 486 bp | This study |
| R | 5’-GCACCAGCTTTGTAGGTTGC-3’ | ||||
| 2 | tcpA | F | 5’-CGTTGGCGGTCAGTCTTG-3’ | 805 bp | Goel et al. 2007 |
| R | 5’-CGGGCTTTCTTCTTGTTCG-3’ | ||||
| 3 | rfbO1 | F | 5’-TCTATGTGCTGCGATTGGTG-3’ | 538 bp | Goel et al. 2007 |
| R | 5’-CCCCGAAAACCTAATGTGG-3’ | ||||
| 4 | toxR | F | 5’-CCTTCGATCCCCTAAGCAATAC-3’ | 779 bp | Rivera et al. 2001 |
| R | 5’-AGGGTTAGCAACGATGCGTAAG-3’ | ||||
| 5 | ctxA | F | 5’-CGGGCAGATTCTAGACCTCCTG-3’ | 564 bp | Fields et al.1992 |
| R | 5’-CGATGATCTTGGAGCATTCCCAC-3’ | ||||
| 6 | ace | F | 5’-TTGATGGCTTTACGTGGCTT-3’ | 198 bp | Rivera et al. 2001 |
| R | 5’-GCGCTTGGTCTAACCCTAAA-3’ | ||||
| 7 | zot | F | 5’-GGTGGCTTTTGACATGCATC-3’ | 575 bp | This study |
| R | 5’-CCAAATTGTCTACGAGGCGA-3’ | ||||