Expression patterns of FHY3 and FAR1. A to C, Seven-day-old NO wild-type seedlings were transferred to medium containing 100 μm
ABA (A), 200 mm NaCl (B), or 400 mm mannitol (C) for various periods of time. D, Seven-day-old NO wild-type seedlings were placed on filter paper under normal growth conditions for up to 3 h. The expression of FHY3 and FAR1 was analyzed by qRT-PCR. Relative expression levels were normalized to that of UBQ. Values are means ± sd; n = 3. E to I, GUS staining of FHY3p:GUS transgenic plants during seed germination (E) and of 2-d-old (F), 3-d-old (G), and 3-week-old (H) FHY3p:GUS plants and the guard cells of 3-week-old FHY3p:GUS plants (I). Bars = 0.5 mm (E), 1 mm (F and G), 5 mm (H), and 10 μm (I).