Table 3. Mean vacuolar Mg, S and Mn concentrations in upslope sugar maple (SM/U) and upslope red maple (RM/U) leaves.
| Maple species/slope | Leaf cell vacuolar elemental concentrations (mmoles/kg of embedded tissue) | ||||||
|---|---|---|---|---|---|---|---|
| cell type (n) | Mg | se | S | se | Mn | se | |
| SM/U | ue (6) | 20.6 | 5.0 | 77.9 | 12.7 | 173.0 | 47.1 |
| SM/U | p (4) | 8.2 | 2.1 | 21.8 | 3.1 | 32.8 | 6.2 |
| RM/U | ue (5) | 230.5 | 20.2 | 9.3 | 1.4 | 47.4 | 4.2 |
| RM/U | p (5) | 148.1 | 12.9 | 18.7 | 2.8 | 41.9 | 8.4 |
| RM/U | sm (7) | 70.0 | 6.2 | 24.9 | 3.5 | 85.6 | 11.8 |
| RM/U | le (5) | 177.0 | 23.9 | 9.3 | 1.4 | 54.6 | 12.5 |
Cell-type notation: upper epidermis (ue), palisade mesophyll (p), spongy mesophyll (sm), lower epidermis (le).