Table 1. Symbiotic phenotypes induced by different htpG strains tested on Astragalus sinicus.
Nodules were harvested at 30 d postinoculation. The data represent the mean ± SE of three independent experiments. Significance of the data were analyzed using independent-samples T test. Values in each column marked by different letters indicate significant differences (P < 0.05).
| Strains | Fresh Weight of Plant (mg/plant) | No. of Nodules (/plant) | Fresh Weight of Nodules (mg/plant) | Nitrogen Fixation Activity (μmol/g nodule h) |
|---|---|---|---|---|
| CK | 52.33c ± 0.70 | 0 | 0 | 0 |
| M. huakuii 7653R | 300.00a ± 14.00 | 20.99a ± 2.83 | 13.78a ± 2.49 | 20.64a ± 4.77 |
| M. huakuii ΔhtpG | 65.00c ± 5.77 | 23.60a ± 3.60 | 7.85b ± 1.28 | 0.36b ± 0.27 |
| M. huakuii ΔhtpG-C | 286.67a ± 40.02 | 19.67a ± 2.31 | 11.88a ± 3.01 | 12.83a ± 7.17 |