Unraveling the paradoxes of plant hormone signaling integration.
Plant hormones play a major role in plant growth and development. They affect similar processes but, paradoxically, their signaling pathways act nonredundantly. Hormone signals are integrated at the gene-network level rather than by cross-talk during signal transduction. In contrast to hormone-hormone integration, recent data suggest that light and plant hormone pathways share common signaling components, which allows photoreceptors to influence the growth program. We propose a role for the plant hormone auxin as an integrator of the activities of multiple plant hormones to control plant growth in response to the environment.
Howard Hughes Medical Institute, Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California, USA.
Yvon
Y
Jaillais
Joanne
J
Chory
D007210:Indoleacetic Acids / Q000378:metabolism; D008954:Models, Biological; D052817:Phototrophic Processes; D010937:Plant Growth Regulators / Q000502:physiology*; D018521:Plant Physiological Phenomena; D015398:Signal Transduction / Q000502:physiology*
D007210:Indoleacetic Acids; D010937:Plant Growth Regulators