Figure 1.

Root hair cell-specific expression of GFP marker lines in Arabidopsis and rice roots. A, GFP accumulation in the AtCOBL9::GFP line in immature root hair cells in the elongation zone (left) and in the differentiation zone (right) of Arabidopsis roots. B, GFP accumulation in the OsEXPA30::GFP line in immature root hair cells in the elongation zone (left) and in the differentiation zone (right) of rice roots. Roots were stained with propidium iodide (red fluorescence). Bars = 100 μm.