Figure 3.—

Expression of an ILR3–GUS fusion. (A–F) ILR3–GUS accumulates in seedling root tips, vasculature, and stipules. Seedlings were grown under continuous white light for 2 (A), 3 (B and C), or 8 (D–F) days prior to histochemical staining for GUS activity. (G–P) ILR3–GUS accumulates in tissues of all major plant organs. Parts shown are from 37- to 44-day-old adult plants grown in soil under continuous light stained for GUS activity. (A, B, D–H, J, K, and M–O) Bars, 1 mm; (C, I, L, and P) bars, 100 μm.