《英文msh词典》gradient,pH
[入口词] gradient,pH
[主题词] Proton-Motive Force
[英文释义] Energy that is generated by the transfer of protons or electrons across an energy-transducing membrane and that can be used for chemical,osmotic,or mechanical work. Proton-motive force can be generated by a variety of phenomena including the operation of an electron transport chain,illumination of a PURPLE MEMBRANE,and the hydrolysis of ATP by a proton ATPase. (From Singleton & Sainsbury,Dictionary of Microbiology and Molecular Biology,2d ed,p171)