| Irradiation Dose, Gy | Superoxide dismutase, units mg−1 protein | Catalase, nmoles H2O2 decomposed min−1×mg−1 protein | Ascorbate peroxidase, nmoles ascorbic acid oxidized min−1×mg−1 protein |
| 0 | 0.083 ± 0.04 (100) | 0.0065 ± 0.0006 (100) | 0.005 ± 0.0009 (100) |
| 1 | 0.05 ± 0.02 (60) | 0.007 ± 0.0004 (108) | 0.005 ± 0.0005 (100) |
| 10 | 0.21 ± 0.02** (253) | 0.007 ± 0.0006 (108) | 0.006 ± 0.0008 (120) |
| 20 | 0.25 ± 0.05* (301) | 0.007 ± 0.0007 (108) | 0.006 ± 0.001 (120) |
| R2 | 0.891 | 0.307 | 0.806 |