Table 1. Plasmids used in this study.
| Plasmid | Resistance | Relevant genotype | Origin |
| pSYM1 | None | mcsS, mcsI, mcsA, mcsB | This work |
| pST76–A | Ampr | oriTS (30°C) | [43] |
| pSYM1–ST76An | Ampr | mcsS, mcsI, mcsA, mcsB | This work |
| pAZ6 | Ampr | mcsS, mcsI, mcsA, mcsB | This work |
| pAZ8 | Ampr | mcsI, mcsA, mcsB | This work |
| pAZ9 | Cmr | mcsS | This work |
| pAZ10 | Cmr | ORF1 | This work |
| pAZ11 | Cmr | ORF2 | This work |
| pAZ12 | Cmr | mcsS 193–363 | This work |
| pAZ13 | Ampr | mcsI | This work |
| pAZ14 | Ampr | mcsI 361–651 | This work |
| pGS1 | Ampr | PBAD | This work |
| pAZ15 | Ampr | PBAD, mcsS | This work |
Ampr = ampicillin resistance; Cmr = chloramphenicol resistance; ORF = open reading frame; PBAD = araC PBAD activator-promoter.