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. 2013 Sep 22;112(7):1395–1407. doi: 10.1093/aob/mct215

Fig. 4.

Fig. 4.

PIN1::GUS expression in developing ARs from 14-day-old Col seedlings grown under different hormonal treatments. (A–C; HF) PIN1 expression at stage III (A), at the base and in the middle of a stage VII ARP (B) and in the niche, cap and procambium of a mature AR (C). (D–F; NAA) High PIN1 expression at stage III (D), at stage VII (E) and in the whole apex of a mature AR (F). (G–I; IBA + Kin) High PIN1 expression at stage III (G) and VII (H), and in a mature AR tip, except for the differentiating cortex and epidermis (I). (J–L; Kin) Very weak PIN1 expression at stage I (J), higher expression at the base and middle part of a stage VII ARP (K) and faint expression in the niche and procambium of a mature AR apex (L). Scale bars: (A,B) = 10 µm; (C–L) = 20 µm.