Figure 7.

miRNA396b Overexpression Lines Are Hypersensitive to PAC Treatments.

(A) Representative images of 13-d-old roots of wild-type and miRNA396b-overexpressing seedlings grown for 8 d on PAC (5 µM), PAC (5 µM) and GA₃ (10 µM), and a corresponding mock solution. The relative abundances of seedling roots with the different phenotypes are provided in the images.

(B) Representative photographs of 10-d-old wild-type (Col) and 35S:miR396b roots grown for 5 d on mock or 5 μM PAC. Magnifications of epidermis and cortex cell layers showing cell division defects are shown in boxes.