FIGURE 4.

De novo root formation in selected mutants. (A) Schematic representation of de novo root formation in Arabidopsis whole leaf explants. Dashed lines indicate the cut site. AR: adventitious root; L1 and L2: first node and second node vegetative leaves, respectively. (B) Morphological changes at the petiole base during de novo root formation in the Col-0 background. Arrowhead indicates the emergence of a root primordium. Scale bars: 200 μm. (C) Rooting capacity in leaf explants of selected mutants at 10 dae. Asterisks indicate significant differences (LSD; p-value < 0.01) with the Col-0 background; those with lower AR values are shown in green and those with higher AR values are in red.