TABLE 3.
Symbiotic phenotypes of S. meliloti strainsa
| Strain | Relevent genotype | Dry wt (mg/plant) | % |
|---|---|---|---|
| RmG490 | Rm1021 phoC490::ΩSp pstC1021 | 7 ± 3 | 15 |
| RmP371 | Rm1021 phoC490::ΩSp, pstC corrected | 43 ± 3 | 92 |
| Rm1021 | Wild type, pstC1021 | 47 ± 5 | 100 |
| RmP110 | Rm1021, pstC wild-type allele (corrected) | 44 ± 3 | 92 |
| Control | No inoculation | 3 ± 1 | 7 |
| RmG830 | Rm1021 phoC490::ΩSp pit310::Tn5 pstC1021 | 3 ± 1 | 6 |
| RmP101 | Fix+ suppressor mutant of RmG830 | 48 ± 4 | 101 |
| RmP636 | Rm1021 phoC490::ΩSp pit310::Tn5, pstC wild type | 49 ± 5 | 103 |
| RmP385 | RCR2011 phoC490::ΩSp | 45 ± 1 | 96 |
| RCR2011 | Wild type | 50 ± 4 | 106 |
| RmP633 | RCR2011 phoC490::ΩSp pit310::Tn5 | 52 ± 3 | 111 |
| RmP379 | Rm5000, pstC1021 allele | 52 ± 2 | 110 |
| RmP388 | Rm5000, phoCDET deletion | 45 ± 2 | 95 |
| Rm5000 | Derivative of wild-type strain SU47, Rif resistance | 46 ± 5 | 99 |
a
Plants were harvested 28 days after inoculation. The dry weights are shoot dry weights (averages ± standard errors for three determinations with 10 plants each). The percentages were determined by comparison with the value for the wild-type strain (Rm1021).