Fig. 7. 35S::JAG Misexpression. (A) Wild-type (left) and 35S::JAG (middle and right) seedling phenotypes, the latter with greening of hypocotyl (arrowhead) and variable fusion of cotyledons. (B) Vasculature of wild-type cotyledon. Arrowhead indicates midvein. (C) Vasculature of 35S::JAG fused cotyledons shows no obvious midvein. (D) to (I) 35S::JAG vegetative and floral defects. (D) Fusion of rosette leaves (arrow) and cotyledon (c) fusion along the petiole margins. (E) Bract formation at the base of the flower pedicel. (F) Stipule outgrowth from the lateral margins at the base of the leaf (arrowhead). (G) Growth of leaf-like tissue and stellate trichomes (arrowhead) on the stem. (H) Abnormal flowers emerging from the inflorescence. (I) Flower with fused sepals connected to abnormal pedicel (arrowhead). (J-Q) SEM analysis of wild-type pedicel (J,K), stem with trichome (L), and leaf with pavement cells (M) in comparison to 35S::JAG pedicel (N,O,Q) and 35S:JAG stem (P). 35S::JAG pedicel cell types resemble leaf pavement cells. Trichome (arrowhead) and large petal-like cell (asterisk) are indicated in O. Fusion between adjacent sepals (arrowhead) is indicated in Q. Scale bars 1 mm (A); 500 µm (B); 200 µm (C); 100 µm (J,N,Q); (K), (L), (M), (O), (P) 10 µm (K-M, O, P).