TABLE 2.
Plant heights, nodule types, and nitrogenase activities for alfalfa inoculated with Rm1021 and derivative strains after 4 weeks of growtha
| Strain | Plant height (cm) | % Of pink nodules | % Of white nodules | Acetylene reduction (nmol/ nodule/h) |
|---|---|---|---|---|
| Rm1021 | 10.2 ± 1.0 | 93.6 ± 8.3 | 6.4 ± 8.3 | 19.5 ± 0.4 |
| SMc01113::mTn5 mutant | 2.2 ± 1.0 | 0 | 100 | 1.1 ± 1.1 |
| Rm1021(pMSO4) | 10.8 ± 2.0 | 93.4 ± 8.2 | 6.6 ± 7.5 | NA |
| SMc01113::mTn5(pMSO4) | 2.6 ± 0.6 | 0 | 100 | NA |
| SMc01113::mTn5(pGW2) | 11.1 ± 2.2 | 91.1 ± 9.9 | 11.1 ± 2.2 | NA |
a
Six plants were used for each strain. Values are means ± standard deviations. NA, not available.