Table 1.
Content and percentage distribution of sugars among the vacuolar, stromal, and cytoplasmic compartments of leaves from Quercus robur and Fraxinus excelsiorData are mean values from four independent fractionations ±SD.
| Whole-leaf content (μmol g–1 FW) | Vacuole (%) | Stroma (%) | Cytoplasm (%) | |
|---|---|---|---|---|
| Quercus robur | ||||
| Mannitol | ND | |||
| Glucose and fructose | 9.2±2.8 | 82.7±8.9 | 1.9±3.8 | 15.6±9.1 |
| Sucrose | 14.6±3.9 | 52.8±8.2 | 9.0±6.8 | 38.3±8.3 |
| Raffinose | ND | |||
| Stachyose | ND | |||
| Fraxinus excelsior | ||||
| Mannitol | 14.4±1.3 | 76.7±1.5 | 20.7±1.2 | 2.0±2.6 |
| Glucose and fructose | 9.1±3.0 | 85.0±17.3 | 3.5±6.0 | 11.5±12.0 |
| Sucrose | 5.9±1.3 | 73.0±22.9 | 0.3±0.6 | 26.7±22.3 |
| Raffinose | 0.5±0.2 | 80 | 20 | 0 |
| Stachyose | 1.3±0.5 | 80 | 20 | 0 |
ND, not detected.