FIGURE 7.

Functional analysis of REF2 and XYP1 during AR formation. (A) Gene structure of At4g13770 and At5g64080. Exons are represented by boxes and introns are depicted as lines. The studied annotated T-DNA insertion (triangles) lines are indicated. (B) Regeneration and rooting capacity in leaf explants of selected lines at 10 dae. Asterisks indicate significant differences (LSD; p-value < 0.01) with the Col-0 background; those with higher AR values are in red. (C,D) Representative images of whole leaf explants of the studied lines at 14 dae. Scale bars: 2 mm. (E) Area of the vascular region in the proximal petiole at 7 and 10 dae of selected xyp1 mutants. Different letters indicate significant differences (LSD; p-value < 0.05). (F) Vascular proliferation on the proximal petiole at 7 dae of selected xyp1 mutants. Scale bars: 200 μm.