Nitric oxide inhibits the cytochrome oxidase but not the alternative oxidase of plant mitochondria [PDF]
Oxygen consumption via the cytochrome pathway in isolated soybean (Glycine max [L.] Merr.) cotyledon mitochondria was inhibited by nitric oxide (NO) while respiration via the cyanide‐insensitive alternative oxidase was not significantly affected. Inhibition of cytochrome pathway activity was rapidly reversible upon depletion of the added NO.
Millar, A.Harvey, Day, David A.
openaire +3 more sources
Analysis of Posttranslational Activation of Alternative Oxidase Isoforms1[OPEN] [PDF]
The multiple alternative oxidase isoforms from Arabidopsis are differentially activated by various metabolites, suggesting isoform-specific functions.
Jennifer Selinski +5 more
semanticscholar +3 more sources
The Role of the Alternative Oxidase in Stabilizing the in Vivo Reduction State of the Ubiquinone Pool and the Activation State of the Alternative Oxidase [PDF]
Abstract A possible function for the alternative (nonphosphorylating) pathway is to stabilize the reduction state of the ubiquinone pool (Qr/Qt), thereby avoiding an increase in free radical production. If the Qr/Qt were stabilized by the alternative pathway, then Qr/Qt should be less stable when the alternative pathway is blocked.
Millenaar, F.F. +3 more
openaire +5 more sources
A revised model of the active site of alternative oxidase
The plant mitochondrial protein alternative oxidase catalyses dioxygen dependent ubiquinol oxidation to yield ubiquinone and water. A structure of this protein has previously been proposed based on an assumed structural homology to the di‐iron carboxylate family of proteins.
Andersson, Martin E, Nordlund, Pär
openaire +3 more sources
Alternative oxidase in the branched mitochondrial respiratory network: an overview on structure, function, regulation, and role [PDF]
Plants and some other organisms including protists possess a complex branched respiratory network in their mitochondria. Some pathways of this network are not energy-conserving and allow sites of energy conservation to be bypassed, leading to a decrease ...
Sluse F.E., Jarmuszkiewicz W.
doaj +2 more sources
Structure of the Alternative Complex III in a supercomplex with cytochrome oxidase [PDF]
Alternative complex III (ACIII) is a key component of the respiratory and/or photosynthetic electron transport chains of many bacteria1–3. Like complex III (also known as the bc1 complex), ACIII catalyses the oxidation of membrane-bound quinol and the ...
Chang Sun +8 more
semanticscholar +5 more sources
Alternative Oxidase Alleviates Mitochondrial Oxidative Stress during Limited Nitrate Reduction in Arabidopsis thaliana [PDF]
The conversion of nitrate to ammonium, i.e., nitrate reduction, is a major consumer of reductants in plants. Previous studies have reported that the mitochondrial alternative oxidase (AOX) is upregulated under limited nitrate reduction conditions ...
Daisuke Otomaru +6 more
doaj +2 more sources
Degradation of mitochondrial alternative oxidase in the appendices of Arum maculatum. [PDF]
Cyanide-resistant alternative oxidase (AOX) is a nuclear-encoded quinol oxidase located in the inner mitochondrial membrane. Although the quality control of AOX proteins is expected to have a role in elevated respiration in mitochondria, it remains ...
Ito K +6 more
europepmc +2 more sources
Alternative oxidase respiration maintains both mitochondrial and chloroplast function during drought
Keshav Dahal, Greg C Vanlerberghe
exaly +2 more sources
De novo transcriptome assembly reveals three alternative oxidase encoding genes in Nymphaea alba L.
Water lilies are aquatic, ornamental and economically valuable plants classified under Nymphaea genus. Nymphaea alba L., white water lily, has a special focus since it is a member of basal angiosperms.
Ercan Selçuk Ünlü +1 more
doaj +1 more source

