Figure 9.

NPA-Treated Wild-Type Plants Phenocopy the Simple-Leaf Phenotype of AS-IAA9 Plants.

(A) Mock treatments are presented in the top row, and NPA treatments (1 μM) are presented in the bottom row. NPA-treated wild-type seedlings reproduced the simple-leaf and leaf-fusion phenotypes (inset).

(B) Effect of NPA treatment on primary root elongation in light-grown wild-type and AS-IAA9 plants.

(C) Inhibition of lateral root formation in wild-type and AS-IAA9 lines (AS213 and AS250) upon NPA application. Error bars represent mean ± se (n ≥ 63).

(D) Leaf vascular patterns in wild-type (left panels), AS-IAA9 (middle panels), and NPA-treated wild-type plants (right panels). Top row, overall views of venation pattern; middle row, close-up pictures of the leaf tips; bottom row, proximal region of midvein. Bars = 1 mm (top and bottom rows) and 100 μm (middle row).