PhotochemistryPhotochemical ProcessesPhotosystem II Protein ComplexPhotosynthesisChlorophyllLightExobiologyChenopodiaceaePhotolysisHalorhodopsinsPhotosynthetic Reaction Center Complex ProteinsEarth (Planet)AtmosphereBacteriorhodopsinsLight-Harvesting Protein ComplexesDesonidePhotoreceptors, MicrobialPlant LeavesRhodopsinPhycobiliproteinsSensory RhodopsinsQuantum TheoryLasersPhotonsCryptochromesFluorescenceHalobacteriumWaterRetinaldehydeSpectrophotometryRetinal PigmentsUltraviolet RaysSpectrum AnalysisCarbon DioxideFlavinsFlavoproteinsPhotosystem I Protein ComplexCyanobacteriaCarbonCarotenoidsElectron TransportRhodobacter sphaeroidesProtonsSpectrophotometry, UltravioletMolecular StructureKineticsSpectrophotometry, InfraredChloroplastsSpectrum Analysis, RamanElectron Spin Resonance SpectroscopyOxygenIsomerismOxidation-ReductionModels, ChemicalTemperatureSodium ChlorideSpectrometry, FluorescencePlantsHydrogen-Ion ConcentrationModels, MolecularPlant ProteinsTime FactorsBacterial ProteinsProtein Conformation