Table III.
Mn- and Cu/Zn-SOD activities in independent transgenic alfalfa plants expressing pMitSOD or pChlSOD
| SOD Isozyme | Control | pMitSOD | pChlSOD |
|---|---|---|---|
| units of SOD activity g−1 protein | |||
| Mn-SOD | 426c (18c) | 1111a (41b) | 802b (46a) |
| Cu/Zn-SOD1 | 883a (38a) | 759a (24b) | 371b (19c) |
| Cu/Zn-SOD2 | 968a (43a) | 996a (36b) | 667b (35b) |
| Total | 2278b | 2851a | 1840c |
Values are averaged across shoot tissues from the same experiment as described in Table II. Values in parentheses are percentages of activity of each individual form relative to the total SOD activity. Values within a row followed by the same letter are not significantly different according to Duncan's multiple range test at the 5% level of probability; n = 50 (control), 106 (pMitSOD), or 58 (pChlSOD).