Abstract
The ATPase system of chloroplasts catalyzes translocation of protons across the thylakoid membrane concomitantly with ATP hydrolysis (Carmeli, 1970). The finding that ATP formation is observed in chloroplasts following a transition from acid to base provided one of the first experimental demonstrations on the reversibility of the enzyme, i.e., ATP is synthesized from an artificially imposed pH differential of appropriate polarity across the membrane. This phenomenon strongly supports one of the basic tenets of the chemiosmotic theory for ATP formation in chloroplasts (Mitchell, 1966, 1968), i.e., that an electrochemical gradient of protons provides the energy for ATP synthesis.
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Schuldiner, S. (1977). Acid Base ATP Synthesis in Chloroplasts. In: Trebst, A., Avron, M. (eds) Photosynthesis I. Encyclopedia of Plant Physiology, vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-66505-9_30
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DOI: https://doi.org/10.1007/978-3-642-66505-9_30
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