Skip to main content
. 2010 Dec 13;107(52):22740–22744. doi: 10.1073/pnas.1013457108

Fig. 3.

Fig. 3.

Low R:FR regulates PIN expression and PIN3-GFP localization in an auxin-dependent manner. (A) The relative transcript abundance of PIN3 in seedlings upon 2 d of low R:FR, IAA (10 μM), or the auxin receptor inhibitor PEO-IAA (50 μM). Data are means (n = 3–4) ± SE and different letters indicate significant differences between means (P < 0.05). (B–I) Using pPIN3::GUS, the localization of PIN3 expression was visualized (B, C, F, and G), whereas PIN3 cellular localization was studied using PIN3-GFP (D, E, H, and I). Expression and cellular localization were affected by 2 d of low R:FR (A–E), IAA (10 μM), or PEO-IAA (50 μM) (A and F–I). Arrows indicate the basal versus lateral orientation of PIN3-GFP.