| Plant shade avoidance response was the intracellular interaction of various photoreceptor forms, which caused stem growth after perceiving the shade signal of plants. The canopy light environment and photoreceptors were introduced firstly. The quantum ratio R：FR of red light (680 nm) and far red light (730 nm) was an important signal molecule in plant shade avoidance response. The photoreceptors of shade avoidance response included phytochrome,cryptochrome, phototropin and UVR8 protein. The different targets and biological function of photoreceptors in light signal perception were introduced. It was emphasized on the interaction and molecular regulation mechanism of Phytochrome Interacting Factors (PIFs) and phytochrome, as well as plant hormones. The function of constitutive photomorphogenesis 1
(COP1) protein in the plant shade avoidance response was also introduced. Finally, the plant shade avoidance in response to night and sunflecks was summarized. |
