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. 2015 Dec 24;170(3):1381–1397. doi: 10.1104/pp.15.01729

Figure 6.

Figure 6.

TOPP4 acts upstream of PIF5 in regulating the growth of Arabidopsis seedlings. A, Quantitative analysis of the hypocotyl lengths of 5-d-old Col-0, topp4-1, pif3, pif4, pil6-1, pif3 topp4-1, pif4 topp4-1, and pil6-1 topp4-1 grown under red light. B, Images of the apical hooks and cotyledon angles of Col-0, topp4-1, pil6-1, and TOPP4-FLAG/pil6-1. Samples were grown 4 d in the dark (Dk) and then exposed for 6 and 21 h of red light (R). Bars = 1 mm. C and D, Quantitative analysis of the apical hook angle (C) and cotyledon angle (D) of different lines as in B. In A, C, and D, error bars represent se (n = 50). Statistical significance was determined by Tukey’s lsd test (*, P < 0.05 and **, P < 0.01).