Phototropin-related NPL1 controls chloroplast relocation induced by blue light

摘要: In photosynthetic cells, chloroplasts migrate towards illuminated sites to optimize photosynthesis and move away from excessively areas protect the machinery1. Although this movement of in response light has been known for over a century, photoreceptor mediating process not identified. The Arabidopsis gene NPL1 (ref. 2) is paralogue NPH1 gene, which encodes phototropin, phototropic bending3. Here we show that required chloroplast relocation induced by blue light. A loss-of-function npl1 mutant showed no avoidance strong light, whereas accumulation weak was normal. These results indicate may function as relocation.