Bromcresol PurpleBacteriorhodopsinsHalobacteriumDark AdaptationDarknessHalobacterium salinarumChromatiaceaeLightRhodopseudomonasChromatiumCarotenoidsRhodospirillumRhodospirillaceaeIndigo CarmineIpomoea batatasAnthocyaninsRhodobacterStrongylocentrotus purpuratusBacteriochlorophyllsAcid PhosphatasePhototrophic ProcessesPhotosynthetic Reaction Center Complex ProteinsPhotosynthesisRhodobacter sphaeroidesProteobacteriaPigments, BiologicalLight-Harvesting Protein ComplexesSpectrophotometryBacteriochlorophyll APhotochemistryRhodobacter capsulatusRhodospirillum rubrumRetinaldehydeColorLythrumThiocapsaBromcresol GreenBacterial ChromatophoresSpectrum AnalysisMolecular Sequence DataRhodospirillalesPigmentationEctothiorhodospiraThiocapsa roseopersicinaMetalloproteinsCircadian RhythmHydrogen-Ion ConcentrationSulfurPhotobiologyKineticsChlorophyllOxidation-ReductionBacterial ProteinsRhodospirillum centenumAmino Acid SequencePhotoperiodPhylogenyRosalesPheophytinsPhotoreceptor CellsThiosulfatesEnergy TransferCytochromes c2ChlorobiSulfidesAdaptation, OcularIndicanElectron Spin Resonance SpectroscopySpectrophotometry, UltravioletAnaerobiosisTemperatureProtonsRNA, Ribosomal, 16SBacteriaSolanaceaeUranium CompoundsCandyPlant LeavesProton PumpsDNA, BacterialBiophysicsBiophysical PhenomenaProtein ConformationSpectrum Analysis, RamanElectron TransportRetinal PigmentsDNA, RibosomalSpectrophotometry, InfraredCacaoEchinaceaStrongylocentrotusOcimum basilicumSequence Analysis, DNAPhotolysisGlucosidesPlant ProteinsEye ColorOxidoreductasesRibulosephosphatesTime Factors