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Cell development in phytohormone-treated rosette leaves. Effects of the phytohormones on pavement cell sizes of the abaxial epidermis (A) and the DNA ploidy level distribution (B) in the seventh leaves of plants treated with K1 (mock), JA, BAP, and GA3 at 14 d after phytohormone treatment. Stomatal guard cells are colored in black. Bars = 100 μm.
