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. 2011 May 6;23(5):1920–1931. doi: 10.1105/tpc.111.083030

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© 2011 American Society of Plant Biologists

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Figure 3. — Changes in Auxin Distribution Caused by HUB Induction.

(A) to (D) DR5rev:GFP activity in root tips of control (A) and INTAM>>RFP-HUB1 (B) after 24 h of induction with 4-hydroxytamoxifen. DR5rev:GFP activity in gravistimulated (5 h) root tips of control (C) and INTAM>>RFP-HUB1 (D) induced with 4-hydroxytamoxifen (24 h). Arrows (g) indicate gravity vector.

(E) and (F) DR5rev:GFP expression pattern in auxin-induced lateral roots of control (E) and INTAM>>RFP-HUB1 (F).

(G) Induction of HUB expression increases acropetal auxin transport in root meristems (26 h treatment with 2 μM 4-hydroxytamoxifen [Tam] or DMSO). Asterisk indicates P < 0.05; n = 9. Error bars are sd.