title: On the nature of the free radical formed during the primary process of bacterial photosynthesis.
mesh_terms: D002734:Chlorophyll; D003080:Cold Temperature; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D007700:Kinetics; D010788:Photosynthesis; D012241:Rhodopseudomonas; D013053:Spectrophotometry
chemical_list: D005609:Free Radicals; D002734:Chlorophyll