Peltier 1988 FEB: Difference between revisions
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|abstract=Measurements of 0, exchange have been performed as a function of light intensity in the green alga Chlamydomonas reinhardtii by using i8O2 and mass spectrometry. The Kok effect (i.e. a decrease in the slope of net 0, exchange curve) was observed at a light intensity of about 15 ~E~m-Zs-l. This effect was due to the inhibition by light of 0, uptake. In conditions where mitochondrial respiration was inhibited by antimycin A and salicyl hydroxamic acid, illumination was found to reduce 0, uptake to the same extent as in the control experiment. We conclude that the Kok effect in Chlam- ydomonas is not the consequence of the inhibition of mitochondrial respiration, but is due to the inhibition of chloro- respiration induced by photosystem I activity. | |||
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{{Labeling | {{Labeling | ||
|area=Respiration | |area=Respiration | ||
|additional= | |organism=Algae | ||
|additional=Dark respiration, Photosynthesis, MitoFit 2021 Dark respiration | |||
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== Cited by == | == Cited by == | ||
{{Template:Cited by Huete-Ortega M 2021 MitoFit Dark respiration}} | {{Template:Cited by Huete-Ortega M 2021 MitoFit Dark respiration}} | ||
Latest revision as of 15:30, 8 August 2023
| Peltier G, Sarrey F (1988) The Kok effect and the light-inhibition of chlororespiration in Chlamydomonas reinhardtii. FEB 228:259-262. |
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Peltier Gilles, Sarrey Frederic (1988) FEB
Abstract: Measurements of 0, exchange have been performed as a function of light intensity in the green alga Chlamydomonas reinhardtii by using i8O2 and mass spectrometry. The Kok effect (i.e. a decrease in the slope of net 0, exchange curve) was observed at a light intensity of about 15 ~E~m-Zs-l. This effect was due to the inhibition by light of 0, uptake. In conditions where mitochondrial respiration was inhibited by antimycin A and salicyl hydroxamic acid, illumination was found to reduce 0, uptake to the same extent as in the control experiment. We conclude that the Kok effect in Chlam- ydomonas is not the consequence of the inhibition of mitochondrial respiration, but is due to the inhibition of chloro- respiration induced by photosystem I activity.
Labels: MiParea: Respiration
Organism: Algae
Dark respiration, Photosynthesis, MitoFit 2021 Dark respiration
Cited by
- Huete-Ortega et al (2021) Substrate-uncoupler-inhibitor-titration protocols for dark respiration in Chlamydomonas reinhardtii. MitoFit Preprints 2021 (in prep).
