Table I. PM H+ ATPase activity.
The vanadate-sensitive ATP hydrolysis was measured in PMFs prepared from PGs incubated in hypo- (198 mm), iso- (298 mm), and hyperosmolar (398 mm mannitol) germination medium. The specific activity is given in nmol mg−1 min−1. Mean values ± sd (n = 3).
Mannitol Concentration | Specific Activity | Osmotic Treatment |
mm | nmol Pi mg−1 min−1 | |
198 | 89.50 ± 19.92 | Hypo |
298 | 130.20 ± 7.35 | Iso |
398 | 164.29 ± 30.30 | Hyper |