The Role of Ascorbate Free Radical as an Electron Acceptor to Cytochrome b-Mediated Trans-Plasma Membrane Electron Transport in Higher Plants |
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| Authors: | Horemans N Asard H Caubergs R J |
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| Institution: | Department of Biology, University of Antwerp (Universitair Centrum Antwerpen), Groenenborgerlaan 171, B-2020 Antwerp, Belgium. |
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| Abstract: | The action of ascorbate free radical as an electron acceptor to cytochrome b-mediated trans-plasma membrane electron transport is demonstrated. Addition of ascorbate free radical to ascorbate-loaded plasma membrane vesicles caused a rapid oxidation of the cytochrome, followed by a slower re-reduction. The fully reduced dehydroascorbate was ineffective. |
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