Phytochrome phosphorylation in plant light signaling

摘要: Reversible protein phosphorylation is a switching mechanism used in eukaryotes to regulate various cellular signalings. In plant light signaling, sophisticated photosensory receptor systems operate modulate growth and development. The photoreceptors include phytochromes, cryptochromes phototropins. Despite considerable progresses defining the roles of these photoreceptors, primary biochemical mechanisms by which photoreceptor molecules transduce perceived signals into responses remain be elucidated. signal-transducing plants are all phosphoproteins and/or kinases, suggesting that light-dependent dephosphorylation play important function photoreceptors. This review focuses on role phytochromes' reversible involved signal transduction plants.