The Arabidopsis E3 ubiquitin ligase HOS1 contributes to auxin biosynthesis in the control of hypocotyl elongation

Photomorphogenesis is a key developmental process involving numerous developmental and physiological changes in response to light, including inhibition of hypocotyl elongation. Light-dependent hypocotyl development is intensively regulated by all plant hormones. In agreement with this, a number of hormone metabolic and signaling components are involved in the light regulation of plant morphogenesis. Here, we report that the RING...