title: On the question of the primary acceptor in bacterial photosynthesis:manganese substituting for iron in reaction centers of Rhodopseudomonas spheroides R-26.
mesh_terms: D001426:Bacterial Proteins / Q000378:metabolism; D001665:Binding Sites; D003580:Cytochromes / Q000378:metabolism; D003624:Darkness; D004578:Electron Spin Resonance Spectroscopy; D004579:Electron Transport; D005615:Freezing; D007501:Iron / Q000378:metabolism*; D007504:Iron Radioisotopes; D007700:Kinetics; D008027:Light; D009682:Magnetic Resonance Spectroscopy; D008345:Manganese / Q000378:metabolism / Q000494:pharmacology*; D008433:Mathematics; D010788:Photosynthesis / Q000187:drug effects; D011485:Protein Binding; D011487:Protein Conformation; D012242:Rhodobacter sphaeroides / Q000187:drug effects / Q000378:metabolism*; D013057:Spectrum Analysis; D013997:Time Factors
chemical_list: D001426:Bacterial Proteins; D003580:Cytochromes; D007504:Iron Radioisotopes; D008345:Manganese; D007501:Iron