Difference between revisions of "Zannoni 1990 FEBS Lett"
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|abstract=The dependence of the respiratory rate on the redox poise of the quinone pool was investigated in wild type and mutant membranes of ''Rhodobacter capsulatus''. A linear relationship has been found between these two parameters only when succinate was oxidized by the bc1 complex. Conversely, a marked nonlinear relationship was observed between the Q-pool reduction level and the respiratory rate when O<sub>2</sub> uptake occurred via the alternative oxidase. In addition, it was found that this latter pathway was not engaged until Q-pool reduction level reached approximately 25%. These results are discussed within the framework of a homogeneous pool regulating both photosynthetic and respiratory fluxes. | |abstract=The dependence of the respiratory rate on the redox poise of the quinone pool was investigated in wild type and mutant membranes of ''Rhodobacter capsulatus''. A linear relationship has been found between these two parameters only when succinate was oxidized by the bc1 complex. Conversely, a marked nonlinear relationship was observed between the Q-pool reduction level and the respiratory rate when O<sub>2</sub> uptake occurred via the alternative oxidase. In addition, it was found that this latter pathway was not engaged until Q-pool reduction level reached approximately 25%. These results are discussed within the framework of a homogeneous pool regulating both photosynthetic and respiratory fluxes. | ||
|editor=[[Plangger M]] | |editor=[[Plangger M]] | ||
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|topics=Q-junction effect | |||
|additional=MitoFit 2021 CoQ | |||
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{{Template:Cited by Komlodi 2021 MitoFit CoQ}} | {{Template:Cited by Komlodi 2021 MitoFit CoQ}} | ||
Latest revision as of 12:42, 3 April 2021
| Zannoni D, Moore AL (1990) Measurement of the redox state of the ubiquinone pool in Rhodobacter capsulatus membrane fragments. FEBS Lett 271:123-7. |
Zannoni D, Moore AL (1990) FEBS Lett
Abstract: The dependence of the respiratory rate on the redox poise of the quinone pool was investigated in wild type and mutant membranes of Rhodobacter capsulatus. A linear relationship has been found between these two parameters only when succinate was oxidized by the bc1 complex. Conversely, a marked nonlinear relationship was observed between the Q-pool reduction level and the respiratory rate when O2 uptake occurred via the alternative oxidase. In addition, it was found that this latter pathway was not engaged until Q-pool reduction level reached approximately 25%. These results are discussed within the framework of a homogeneous pool regulating both photosynthetic and respiratory fluxes.
• Bioblast editor: Plangger M
Labels:
Regulation: Q-junction effect
MitoFit 2021 CoQ
Cited by
- Komlódi T, Cardoso LHD, Doerrier C, Moore AL, Rich PR, Gnaiger E (2021) Coupling and pathway control of coenzyme Q redox state and respiration in isolated mitochondria. Bioenerg Commun 2021.3. https://doi.org/10.26124/bec:2021-0003
