Fig. 3
From: Q&A: How do plants respond to cytokinins and what is their importance?
Current model of iP and tZ biosynthesis and metabolic pathways in Arabidopsis. In Arabidopsis, IPT preferentially utilizes ATP and ADP, and CYP735A preferentially utilizes iPRMP and iPRDP, as substrates. LOG exclusively reacts with their monophosphate forms. Active cytokinins are degraded by CKX, glucosylated by UGT, or reverted to their precursors by the purine salvage pathway