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ABI4-driven GUS expression. Histochemical staining of globular embryo in seed (A), excised 5-d embryo (B), and mature seed (C); 2-d (D), 3-d (E), and 5-d (F) seedlings, and transgenic (G and H) flowers. Bar = 100 μm in A and C; bar = 150 μm in B; bar = 300 μm in D; bar = 500 μm in E and G; bar = 1 mm in F; bar = 250 μm in H.
