Fig. 2
Auxin homeostasis is crucial for root hair elongation under low P. a Genes regulating Auxin biosynthesis (TAA1) and auxin degradation (DAO1, DAO2) are upregulated under low P (LP) conditions. *Indicate significant difference (q-value < 0.0001) judged by Student’s t-test and after Benjamini and Hochberg false discovery rate correction. b, c Representative images (b) and boxplot (c) showing root hair length in the root hair zone under low (LP) or high P (HP) in Columbia (Col), aux1 (aux1-22) and taa1 mutant seedlings. N = 3, scale bar = 0.5 mm. *, **, and *** indicate significant difference (q-value < 0.005, 0.0001 and 0.00001, respectively) judged by Student’s t-test. d, e Representative images (d) and boxplot (e) showing root hair length under low (LP) or high (HP) P in Columbia (Col) and dao1 (dao1.2 & dao1.2D) mutant seedlings. N = 3, scale bar 0.5 mm. *, **, and *** indicate significant difference (q-value < 0.005, 0.0001, and 0.00001, respectively) judged by Student’s t-test
