ATP in Plant Mitochondria: Substrates, Inhibitors, and Uncouplers

    Research output: Chapter in Book/Report/Conference proceedingChapter

    2 Citations (Scopus)

    Abstract

    Adenosine triphosphate (ATP) is the energy carrier of the cell and in eukaryotic cells is synthesized via photosynthesis and respiration. Within respiration, there is a low level of ATP synthesis associated with glycolysis in the cytoplasm; however, the majority of ATP is synthesized via oxidative phosphorylation which occurs within mitochondria, specifically via the operation of an electron transport chain (ETC) in the inner mitochondrial membrane. In mammals, flux through the respiratory pathway is tightly regulated by the ATP/adenosine diphosphate ratio or adenylate energy charge of the cell. Plants, unlike mammals, must synthesize all of their cellular components. In plants, the presence of a nonphosphorylating pathway in the mitochondrial ETC and an uncoupler protein in the inner membrane overcomes this restriction by adenylate control. In plants, respiration not only is important for energy production but also has a major role in biosynthesis and anabolic reactions, in programmed cell death, and, more recently, has been implicated as stress response signaling sensor.

    Original languageEnglish
    Title of host publicationEncyclopedia of biological chemistry
    Subtitle of host publicationSecond Edition
    PublisherAcademic Press
    Pages141-144
    Number of pages4
    Volume3
    Edition2nd
    ISBN (Electronic)9780123786319
    ISBN (Print)9780123786302
    DOIs
    Publication statusPublished - 15 Feb 2013

    Keywords

    • Alternative oxidase
    • Electron transport chain
    • NAD(P)H
    • Proton-motive force

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  • Cite this

    Soole, K., & Menz, R. (2013). ATP in Plant Mitochondria: Substrates, Inhibitors, and Uncouplers. In Encyclopedia of biological chemistry: Second Edition (2nd ed., Vol. 3, pp. 141-144). Academic Press. https://doi.org/10.1016/B978-0-12-378630-2.00135-3