Fig. 10

A proposed working hypothesis for light and UV-B-induced apple peel coloration. UVR8, UVB photoreceptor; HY5, ELONGATED HYPOCOTYL; MYB-bHLH-WD40, the complex of MYB, MYC-like basic helix–loop–helix (bHLH) and WD40-repeat proteins. ? represents visible light receptor has not been found under light-treatment