抗坏血酸自由基作为电子受体在高等植物细胞色素b介导的跨质膜电子传递中的作用
The Role of Ascorbate Free Radical as an Electron Acceptor to Cytochrome b-Mediated Trans-Plasma Membrane Electron Transport in Higher Plants.
作者信息
Horemans N., Asard H., Caubergs R. J.
机构信息
Department of Biology, University of Antwerp (Universitair Centrum Antwerpen), Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
出版信息
Plant Physiol. 1994 Apr;104(4):1455-1458. doi: 10.1104/pp.104.4.1455.
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.
摘要
已证实抗坏血酸自由基作为电子受体对细胞色素b介导的跨质膜电子传递的作用。向负载抗坏血酸的质膜囊泡中添加抗坏血酸自由基会导致细胞色素迅速氧化，随后再还原速度较慢。完全还原的脱氢抗坏血酸无效。
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