Fig. 1

SCAP1 expression patterns in emerging leaves. (a-c) GUS staining of the scap1-2 line and, (d-i), a representative proSCAP1:GUS-GFP transgenic line. Pictures were taken at different stages of leaf development from day 5 (a, d) to 7 (b, e). (g, h) Transversal sections of leaf primordia of a proSCAP1:GUS-GFP seedling at day 5, (g) and 7 (h). (i) GCs specific GUS staining at different maturation stages in 3-week-old 6^th leaf. Bars = 50 μm (a, b, g, h); 500 μm (c, f); 100 μm (d, e, f); 1 mm (i)