Plant optogenetics: Applications and perspectives.
                            
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                                cyan
                            
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                                near-infrared
                            
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                                UV
                            
                            
                                Cobalamin-binding domains
                            
                                Cryptochromes
                            
                                Fluorescent proteins
                            
                                LOV domains
                            
                                Phytochromes
                            
                                UV receptors
                            
                            
                            
                            Review
                            
                            
                            
                        
                        
                        
                        
                            Abstract:
                            To understand cell biological processes, like signalling pathways, protein movements, or metabolic processes, precise tools for manipulation are desired. Optogenetics allows to control cellular processes by light and can be applied at a high temporal and spatial resolution. In the last three decades, various optogenetic applications have been developed for animal, fungal, and prokaryotic cells. However, using optogenetics in plants has been difficult due to biological and technical issues, like missing cofactors, the presence of endogenous photoreceptors, or the necessity of light for photosynthesis, which potentially activates optogenetic tools constitutively. Recently developed tools overcome these limitations, making the application of optogenetics feasible also in plants. Here, we highlight the most useful recent applications in plants and give a perspective for future optogenetic approaches in plants science.