Undivided agar block Divided agar block (A)Dark Corn coleopt excised and placed Coleoptile tip on agar completely divided 2587-49bot by thin piece of mica; 1. 2/ no redistribution Curvature angle of auxin observed (degrees) (B)Unilateral light Coleoptile tip partly divided by thin piece of mica: lateral 25.6 No destruction of auxin 8.1/ 15.4/ redistribution of auxin occurs Unilateral light does not cause the Auxin is transported laterally to the photodestruction of auxin on the shaded side in the tip illuminated side FIGURE 19.27 Evidence that the lateral redistribution of auxin is stimulated by uni directional light in corn coleoptiles igure 10-11Figure 10-11