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. 2020 Feb 26;11:1053. doi: 10.1038/s41467-020-14905-w

Fig. 5. Neither epidermal nor vascular PIF4 regulates hypocotyl elongation and hypocotyl negative gravitropism in the dark.

Fig. 5

a Hypocotyl lengths of WT, pifq, ML1p::PIF4;pifq, and SUC2p::PIF4;pifq seedlings grown in the dark for 5 days. Error bars indicate s.d. (n = 15 plants). Letters above the bars indicate significant differences based on one-way ANOVA and Tukey’s test (P < 0.05). b Epidermal PIF4, but not vascular PIF4, represses cotyledon opening in the dark. Representative seedlings grown in the dark for 5 days are shown. c Scatter plot of the measurement of hypocotyl negative gravitropism in the WT, pifq, ML1p::PIF4;pifq, and SUC2p::PIF4;pifq seedlings. Seedlings were grown in the dark on vertically oriented agar surfaces and angles between the growing direction of hypocotyls and the opposing direction of gravity were measured. Letters indicate significant differences based on one-way ANOVA and Tukey’s test (P < 0.05). Source data are provided as a Source Data file.