Inhibition of Cyanide-Resistant Respiration in Pea Cotyledon Mitochondria by Chloroquine
- 1 May 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 69 (5), 1113-1115
- https://doi.org/10.1104/pp.69.5.1113
Abstract
The action on mitochondrial respiration of a ubiquinone analog, chloroquine, was studied using purified mitochondria from the cotyledons of germinating peas (P. sativum L. cv. Homesteader). Chloroquine at 3 mM did not inhibit malate or succinate oxidation at pH 7.2, but it did inhibit malate (but not succinate) oxidation at pH 8.2. Cyanide-resistant respiration was inhibited. The role of ubiquinone in the cyanide-resistant respiratory pathway and on the location of the alternate oxidase are discussed.This publication has 6 references indexed in Scilit:
- Malate Oxidation in Plant Mitochondria via Malic Enzyme and the Cyanide-insensitive Electron Transport PathwayPlant Physiology, 1980
- Cyanide-insensitive Respiration in Pea CotyledonsPlant Physiology, 1979
- EPR studies of higher plant mitochondria I. Ubisemiquinone and its relation to alternative respiratory oxidationsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1977
- Hydroquinone DehydrogenasesAnnual Review of Biochemistry, 1977
- The involvement of the protonmotive ubiquinone cycle in the respiratory chain of higher plants and its relation to the branchpoint of the alternate pathwayFEBS Letters, 1976
- The role of Cl− in photosynthesis I. The Cl− requirement of electron transportBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1969