Figure 5.

AnnAt2 expression. A, Expression in the germinating embryo begins in epidermal cells of the root (r); cotyledon (c) and seed coat (sc). B, Seedling showing epidermal expression in the epidermis of the hypocotyl (h) and cotyledons (c). C, Oblique longitudinal section through the hypocotyl (h)-root (r) junction showing expression in the hypocotyl epidermis and the endodermis (e) of the root. D, Cross section through a seedling hypocotyl showing epidermal expression. E, Cross section through seedling root showing expression in the endodermis (e). F, Oblique longitudinal section through a root showing expression in two lateral root primordia. G, Oblique section through a root tip showing enhanced expression in the epidermis. H, Longitudinal section through d 14 plant showing epidermal expression in the creases (arrows) between floral primordia (f) and the shoot meristem (sm). An arrowhead shows patchy epidermal expression in a flower bud; leaf base (lb). Scale bar lower left: A and C, 60 μm; B, 70 μm; D and E, 130 μm; F and G, 100 μm; and H, 200 μm.