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. 2005 Oct;17(10):2676–2692. doi: 10.1105/tpc.105.033415

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Copyright © 2005, American Society of Plant Biologists

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Figure 8. — Enhanced Auxin Sensitivity in IAA9-Inhibited Lines.

(A) Auxin dose–response assay of cotyledon explants. Root formation is induced by lower auxin (NAA) concentration in AS-IAA9 (AS) plants than in the wild type. Root regeneration is promoted at 0.1 μM NAA in the wild type and at 10 times lower concentration (0.01 μM) in AS-IAA9 lines.

(B) Auxin dose response in hypocotyl segments. Elongation is given as percentage increase in final length over the initial length after 23 h incubation in a solution containing the indicated NAA concentration. The results are representative of data obtained with three independent AS-IAA9 lines: AS213, AS111, and AS250. Error bars represent mean ± se, n ≥ 20.