Fig. 3. Xcl1 effects on other parts of the maize plant. (A) KN1 immunolocalization on a median longitudinal section of a wild-type meristem showing down-regulation in the P0 and developing leaves. (B) KN1 expression in the Xcl1 meristem is normal, but the apical dome is significantly shorter. (C,D) Transverse sections through the root hair zone of wild-type (C) and Xcl1 (D) roots. The roots have similar numbers of cell layers (*indicates root cap cells). (E) SEM of wild-type kernel with pericarp removed showing one layer of aleurone cells (al) bordering the starchy endosperm (en). (F) Xcl1 kernel has 2 layers of aleurone cells. Scale bars A-B, 100 µm; C-D 500 µm; E-F, 25 µm.
