Figure 2. The cpr5 and acd6 mutants exhibited drought tolerance. The rosette leaves of 3-week-old plants were detached and were weighted at 0 h, 1 h, and 2 h. Water loss (mg mm⁻²) was calculated as fresh weight loss (mg) divided by leaf area (mm⁻²). Leaf area was measured by ImageJ software. Data are means ± SE (n = 10). * indicates a significant difference from Col-0 (P < 0.05), which is determined by the Student t-test.