Figure 3.

Schematic representation of the complex cross-talk network of hormones in root development. Individual effects of phytohormone on root development are described in the green boxes. Black lines with a black box describe a cross-talk between two phytohormones. Orange lines indicate that a certain phytohormone partakes in a cross-talk between two hormones. All information in this scheme is described more detailed in the text and can easily be found using the referral letters A–Y. Abbreviations: COI1 (CORONATINE INSENSITIVE 1), EZ (elongation zone), JAZ (JASMONATE ZIM-DOMAIN PROTEINS), LR (lateral root), LRI (lateral root initiation), LRP (lateral root primordium), MZ (meristematic zone), PIN (PIN FORMED), PR (primary root), QC (quiescent centre), RAM (root apical meristem), TZ (transition zone).