Table IV.
Effect of propylgallate on state 2-to-state 1 transition
Conditions as in Table I. Respiration and photosynthesis are expressed in μmol of O2 mg chlorophyll h−1. Data from 10 experiments for the control, and five for the propylgallate treatments (±se). The lag has been normalized to the one of the control (−O2). Where added, O2 was 150 μm. Light intensity, 54 μE m−2 s−1.
| Additions
|
State 2
|
|||||
|---|---|---|---|---|---|---|
| Lag
|
State 1
|
|||||
| Fv/Fm | −O2 | +O2 | Fv/Fm | Respiration | Photosynthesis | |
| s | ||||||
| None | 0.38 ± 0.06 | 100 | 51 ± 7.9 | 0.74 ± 0.02 | 10.3 ± 0.98 | 37.9 ± 4.5 |
| Propylgallate 1 mm | 0.43 ± 0.04 | 110 ± 7.4 | 54 ± 4 | 0.70 ± 0.02 | 11 ± 0.85 | 33 ± 3.3 |
| Propylgallate 1.5 mm | 0.36 ± 0.05 | 128 ± 2 | 86 ± 12 | 0.67 ± 0.03 | 11 ± 1.1 | 30.3 ± 3.1 |