title: Electrochemical proton gradient across the membranes of photophosphorylating bacteria.
mesh_terms: D020130:Bacterial Chromatophores / Q000378:metabolism*; D001436:Bacteriorhodopsins; D004563:Electrochemistry; D004734:Energy Metabolism; D006217:Halobacterium / Q000378:metabolism*; D006859:Hydrogen / Q000378:metabolism*; D008566:Membranes / Q000378:metabolism; D010785:Photophosphorylation; D012245:Rhodospirillales / Q000378:metabolism*
chemical_list: D001436:Bacteriorhodopsins; D006859:Hydrogen