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. 2008 Aug;147(4):1735–1749. doi: 10.1104/pp.108.122226

Figure 3.

Figure 3.

Activity of AtPRA1 promoter-GUS fusions (AtPRA1:GUS) in 8-d-old transgenic Arabidopsis seedlings. Representatives from each observed pattern are summarized. A, AtPRA1.D:GUS expression throughout the leaf veins, hypocotyl, and root tissues. B, AtPRA1.G2:GUS expression in vascular root tissues. C, AtPRA1.F1:GUS expression restricted to the hypocotyl region. D, Close-up of AtPRA1.F1:GUS, showing GUS expression at the leaf base. E, Expression of AtPRA1.F3:GUS at the lateral root primordium. F, AtPRA1.E:GUS expression in leaf veins and apical meristem. G and H, Expression of AtPRA1.B4:GUS and AtPRA1.B6:GUS in guard cells. Note the staining of trichomes of AtPRA1.B4:GUS and AtPRA1.B6:GUS at the leaf veins restricted to the developing leaf pair. I, Close-up of stomatal expression of AtPRA1.B4:GUS. J, AtPRA1.F2:GUS expression throughout trichomes and at the apical meristem as well. K, Staining of AtPRA1.G2:GUS restricted to initiating trichomes. L, AtPRA1.B4:GUS expression in fully developed trichomes. M, AtPRA1.D:GUS expression in columella and root cap cells. N, AtPRA1.E:GUS observed at the vascular root tissue and at the columella root cap cells. O, Localization of AtPRA1.B4:GUS expression in the root cap.