TABLE 2.
Symbiosis of mutants affected in synthesis or display of the Kdo homopolymer
| S. meliloti strain | rkpZa | No. of green plants | No. of plants tested |
|---|---|---|---|
| Rm1021 | − | 15 | 15 |
| + | 14 | 15 | |
| Rm1021 rkpA::Nm | − | 15 | 15 |
| + | 15 | 15 | |
| Rm1021 kdsB2::pDW33 | − | 15 | 15 |
| + | 15 | 15 | |
| Rm1021 exoY::pDW33 | − | 1 | 15 |
| + | 7 | 15 | |
| RM1021 exoY::pDW33 rkpA::Nm | − | 0 | 15 |
| + | 1 | 15 | |
| Rm1021 exoY::VO155 kdsB2::pDW33 | − | 1 | 15 |
| + | 6 | 15 | |
| Mock inoculation | NA | 0 | 15 |
a
The presence of the plasmid containing rkpZ (pMW23) is indicated with a plus, while the presence of the control plasmid (pTE3) is indicated with a minus. NA, not applicable. Similar results were observed in two independent experiments.