The non-coupled substrate oxidation mediated by components of the electron transport chain that are not coupled to energy accumulation (such as plant alternative oxidase and rotenone-insensitive NADH dehydrogenases) and uncoupled respiration are peculiar features of plant mitochondria. The physiological significance of such energy-wasting oxidation processes is still debated. It is proposed that non-coupled oxidation could regulate the level of reduction of components of the electron transport chain and the rate of one-electron reduction of oxygen, thereby affecting the rate of formation of reactive oxygen species.
Conference Article| December 01 2003
Possible role of free oxidation processes in the regulation of reactive oxygen species production in plant mitochondria
Biochem Soc Trans (2003) 31 (6): 1316–1317.
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V.N. Popov; Possible role of free oxidation processes in the regulation of reactive oxygen species production in plant mitochondria. Biochem Soc Trans 1 December 2003; 31 (6): 1316–1317. doi: https://doi.org/10.1042/bst0311316
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