Table I.
Solute concentrations in leaf extracellular (xylem) sap of ice plant side shoots
| Solute | Control | NaCl Stress |
|---|---|---|
| mm | ||
| Sodium | 0.30 | 56.22 |
| Myo-Inositol | 0.04 | 0.44 |
| d-Ononitol | 0.11 | 1.33 |
| Suc | 0.0 | 0.0 |
The side shoots, which develop only in mature ice plants (Adams et al., 1998), were from plants 8 weeks of age. A single experiment is shown; repeat experiments (eight times with side shoots from different plants in separate stress experiments) demonstrated the same relative increases for myo-inositol/ononitol and similar increases in sodium. The plants were stressed by the addition of NaCl (100 mm) for 24 h.