Table I.
Effect of transfer from high to low temperature on bulk leaf ABA and RWC of C. communis leaves from intact plants incubated under a PPFD of 350 μmol m−2 s−1 for up to 6 h
| Time from Start of Treatment | Temperature | Bulk Leaf ABA Concentration | RWC |
|---|---|---|---|
| h | °C | nmol g−1 dry wt | % turgid fresh wt |
| 0 | 28 | 3.6 ± 1.1 | 97.3 ± 0.3 |
| 0.5 | 7 | 4.7 ± 1.6 | 98.2 ± 0.1 |
| 1 | 7 | 1.4 ± 0.6 | 99.2 ± 0.1 |
| 2 | 7 | 4.0 ± 0.6 | |
| 4 | 7 | 3.7 ± 1.3 | 97.9 ± 0.3 |
| 6 | 7 | 4.8 ± 0.7 |
Bulk leaf ABA concentrations are means of three leaves measured by radioimmunoassay (Quarrie et al., 1988) over a time course. RWCs are means of three leaves over a time course, expressed as a percentage of the total turgid fresh wt.