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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: J Exp Bot. 2016 May 30;67(14):4015–4037. doi: 10.1093/jxb/erw216

Figure 4. Cytokinin phosphorelay and its role in PIN1 trafficking.

Figure 4

Schematic representation of the ‘classical’ cytokinin phosphorelay pathway from receptor to gene activation (right) and its ‘non-canonical’ role, independent of transcription but relying on AHKs and ARRs, in PIN1 trafficking during lateral root initiation (left). Dashed arrows represent direct phosphorylation events; arrows with chevron-shaped arrowhead represent trafficking pathways and arrows with triangle-shaped arrowhead represent signalling events; blunt-ended lines represent inhibition.