Figure 8.

AGL21 Regulates Auxin Accumulation in the LRPs and LRs.

(A) Quantification of free IAA content in the root of 9-day-old plants. Values are mean ± SD of three replica experiments and asterisks denote Student’s t-test significance compared with the wild-type plants: * P < 0.05; ** P < 0.01.

(B–F) Expression of DR5:GUS (N = 20 plants) in three different stages of LRP (B–D), LR, and PR tips (E, F) of Col-0 plants. Nine-day-old plants grown on MS medium were used for GUS staining for 6h.

(G–K) Expression of DR5:GUS in three different stages of LRP (G–I), LR, and PR tips (J, K) of agl21 knockout plants.

(L–P) Expression of DR5:GUS in three different stages of LRP (L–N), LR, and PR tips (O, P) of AGL21-overexpressing plants.