title: [Nitrate accumulated on the earth before the accumulation of atmospheric oxygen by green plants and it was utilized as terminal electron acceptor and nitrogen source (author's transl)].
mesh_terms: D005075:Biological Evolution; D004579:Electron Transport; D009566:Nitrates / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism
chemical_list: D009566:Nitrates; D009584:Nitrogen