Table II.
Effect of O2 ramping on quantity of extractable ENOD2 and MAC236 glycoproteina
| Growth pO2 | Antigen | Pre-Ramp | Post-Ramp |
|---|---|---|---|
| % | |||
| 8 | ENOD2 | 55 ± 5b | 63 ± 39b |
| 50 | ENOD2 | 62 ± 32b | 66 ± 26b |
| 20 | MAC236 | 11 ± 2c | 13 ± 4c |
a
Individual nodules were assayed by competitive ELISA. Results are the means ± ses of assays on eight nodules from each of two plants for each treatment.
b
Units of nanograms of ENOD2 peptide equivalents per microgram of nodule protein.
c
Arbitrary units of MAC236 antigen per microgram of nodule protein.