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Tissue-specificity of ARPF2 expression. Histochemical GUS staining of transgenic plants in which GUS expression was driven with the ARPF2 promoter. Representatives of shoot apex of 2-day-old seedlings (A), whole seedling (B), cotyledon (C), true leaf (D), lateral root initiation (E,F), and primary root tip (G) of 10-day-old seedlings, flower (H), and pollen (I). Three independent lines were analyzed with similar results. Scare bars: 50 μm in (A), 1 mm in (B–D,H), 100 μm in (E–G,I).
