Figure 7.

ein3 suppresses ET-induced senescence of sr1-1. A, Four-week-old plants were treated with 100 μL L⁻¹ ET for 3 d. B, Decrease in chlorophyll content induced by ET treatment, measured by the ratio of chlorophyll content at day 3 to content at day 0, of the fourth to sixth leaves treated with 100 μL L⁻¹ ET for 0 and 3 d. The bars represent means and sd (n = 4). Statistical differences are indicated by different lowercase letters (P < 0.01, one-way ANOVA). The experiment was repeated three times with similar results. Col, Ecotype Columbia.