Figure 2.

Expression of Root Hair-Related bHLH Transcription Factors and Their Targets in Response to MeJA.

Seeds of Col-0, jazQ, coi1-2, and JAZ8-ΔJas-9 were germinated and grown for 4 d on half-strength MS medium and then were transferred to half-strength MS medium with 20 μM MeJA for 2 d. Total RNA was extracted from at least three batches of roots as biological replicates, and at least three technical replicates were analyzed for each sample. Error bars show SD from three independent biological replicates. Expression of ACTIN2 was used as a normalization control. Bars with different letters are significantly different from each other (P < 0.05). Data were analyzed by ANOVA.