Table IV.
Induction of glycinebetaine—without TBARS rise or loss of chlorophyll (ABA); without wilting (ABA, H2O2)
| Inducer | Glycinebetaine | TBARS | Water Deficit | Chlorophyll | ||||
|---|---|---|---|---|---|---|---|---|
| μmol g−1 | Δ | A450 g−1 | Δ | % | Δ | mg g−1 | % loss | |
| None | 0.72 ± .02 | 5.1 ± 0.2 | 1.4 ± .6 | 1.64 ± .08 | ||||
| NaCl | 2.61 ± .26 | 1.89 | 12.7 ± 0.2 | 7.6 | 17.7 ± .9 | 16.3 | 1.02 ± .06 | 38 |
| H2O2 50 mm | 2.74 ± .09 | 2.02 | 22.8 ± 2.2 | 17.7 | 1.0 ± .7 | – | 1.15 ± .04 | 30 |
| ABA | 2.68 ± .04 | 1.96 | 6.6 ± 0.7 | 1.5 | 0.5 ± .3 | – | 1.44 ± .04 | 12 |
All inducers were used in the growth medium, which was changed on d 2. Leaves were harvested on d 4 and stored frozen until analyzed. All numbers shown are the average of three samples ± se.