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ibr mutants display root hair elongation defects. A to F, Histograms of root hair lengths of 5-d-old vertically grown Col-0 (Wt; A), pen3-4 (B), ibr1-2 (C), ibr3-1 (D), ibr10-1 (E), and ibr1-2 ibr3-1 ibr10-1 (F) seedlings. Root hairs were measured using NIH Image software (n = 500 total root hairs from at least 10 seedlings). Bars depicting median root hair lengths are shaded. [See online article for color version of this figure.]
