Table 1 Characteristics of the symbiotic interaction between different NF-independent Aeschynomene species and the WT and ΔnifV mutant of Bradyrhizobium ORS285.
Plant species | Growth stimulation plants | Mean number of nodules/plant | Legheamoglobin degradation (green nodules) | Nitrogenase enzyme activity (nmol ethylene/hr/plant) | “Ethane formation” | |||||
|---|---|---|---|---|---|---|---|---|---|---|
WT | ΔnifV | WT | ΔnifV | WT | ΔnifV | WT | ΔnifV | WT | ΔnifV | |
A. evenia | +++ | − | 17 ± 1 (A) | 28 ± 1 (B) | no | yes | 370 ± 28 (A) | 27 ± 7 (B) | no | yes |
A. indica | +++ | − | 33 ± 2 (A) | 49 ± 3 (B) | no | yes | 590 ± 26 (A) | 340 ± 120 (B) | no | yes |
A. scabra | +++ | − | 17 ± 1 (A) | 33 ± 1 (B) | no | yes | 534 ± 89 (A) | 190 ± 17 (B) | no | yes |
A. sensitiva | +++ | − | 14 ± 3 (A) | 27 ± 3 (B) | no | yes | 332 ± 34 (A) | 69 ± 24 (B) | no | yes |
A. deamii | +++ | − | 24 ± 1 (A) | 45 ± 2 (B) | no | yes | 665 ± 59 (A) | 31 ± 10 (B) | no | yes |
A. denticulata | +++ | − | 18 ± 1 (A) | 48 ± 2 (B) | no | yes | 402 ± 29 (A) | 227 ± 30 (B) | no | yes |
A. virginica | +++ | + | 39 ± 2 (A) | 82 ± 3(B) | no | yes | 867 ± 89 (A) | 819 ± 35 (A) | no | yes |
A. tambacoudensis | ++ | − | 25 ± 3 (A) | 49 ± 1(B) | no | yes | 247 ± 13 (A) | 80 ± 13 (B) | no | yes |
A. pratensis | +++ | + | 11 ± 1 (A) | 23 ± 1 (B) | no | yes | 202 ± 62 (A) | 151 ± 12 (A) | no | yes |
A. selloi | +++ | + | 20 ± 2 (A) | 29 ± 1 (B) | no | yes | 574 ± 55 (A) | 482 ± 34 (A) | no | yes |
