| Gene | Primer | Sequence (5’-3’) |
| ompK35 | Forward Reverse | GCAATATTCTGGCAGTGGTGATC ACCATTTTTCCATAGAAGTCCAGT |
| ompK36 | Forward Reverse | TTAAAGTACTGTCCCTCCTGG TCAGAGAAGTAGTGCAGACCGTCA |
| rpoB | Forward Reverse | AAGGCGAATCCAGCTTGTTCAGC TGACGTTGCATGTTCGCACCCATCA |