Fig. 7. CYC represses leaf growth in Arabidopsis. (A) Leaves from wild-type and 35S::CYC:GR plants grown on DEX (+CYC), at early (day 14; left) and late (day 36; right) developmental stages. In all cases, the fourth rosette leaf was measured. Scale bar: 1 mm. (B) SEM images of adaxial epidermal cells from leaves at the same developmental stage as in A with individual cells highlighted in diverse colours. Scale bar: 50 µm. (C) Measurements of leaf area (mm²) and (D) epidermal cell area (µm²) show that CYC reduces leaf surface area by a reducing cell proliferation and cell expansion. Three to five leaves were measured and the area of 19-87 cells in each leaf was obtained. Error bars indicate standard deviations.