Dry 1989 Arch Biochem Biophys: Difference between revisions
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|title=Dry IB, Moore AL, Day DA, Wiskich JT (1989) Regulation of alternative pathway activity in plant mitochondria: nonlinear relationship between electron flux and the redox poise of the quinone pool. Arch Biochem Biophys 273:148-57. | |title=Dry IB, Moore AL, Day DA, Wiskich JT (1989) Regulation of alternative pathway activity in plant mitochondria: nonlinear relationship between electron flux and the redox poise of the quinone pool. Arch Biochem Biophys 273:148-57. | ||
|info=[https://www.ncbi.nlm.nih.gov/pubmed/2757390 PMID: 2757390] | |info=[https://www.ncbi.nlm.nih.gov/pubmed/2757390 PMID: 2757390] | ||
|authors=Dry | |authors=Dry Ian B, Moore Anthony L, Day David A, Wiskich Joseph T | ||
|year=1989 | |year=1989 | ||
|journal=Arch Biochem Biophys | |journal=Arch Biochem Biophys | ||
Revision as of 23:40, 27 November 2020
| Dry IB, Moore AL, Day DA, Wiskich JT (1989) Regulation of alternative pathway activity in plant mitochondria: nonlinear relationship between electron flux and the redox poise of the quinone pool. Arch Biochem Biophys 273:148-57. |
Dry Ian B, Moore Anthony L, Day David A, Wiskich Joseph T (1989) Arch Biochem Biophys
Abstract: The dependence of respiratory flux via the alternative pathway on the redox poise of the ubiquinone (Q) pool was investigated in soybean cotyledon mitochondria. A marked nonlinear relationship was observed between Q-pool reduction level and O2 uptake via the alternative oxidase. Significant engagement of the alternative pathway was not apparent until Q-pool reduction level reached 35-40% but increased disproportionately on further reduction. Similar results were obtained with electron donation from either Complex 1 or Complex 2. Close agreement was obtained over a range of experimental conditions between the estimated contribution of the alternative pathway to total respiratory flux, as measured with salicylhydroxamic acid, and that predicted from the redox poise of the Q-pool. These results are discussed in terms of existing models of the regulation of respiratory flux via the alternative pathway.
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