Control of superoxide production in mitochondria from maize mesocotyls
- 20 June 2004
- journal article
- Published by Wiley in FEBS Letters
- Vol. 570 (1-3) , 52-56
- https://doi.org/10.1016/j.febslet.2004.06.024
Abstract
To understand the biochemical events that control the generation of superoxide, the effect of inhibiting the respiratory complexes III and IV (C-III and C-IV) and alternative oxidase (AOX) on the rate of superoxide production was analyzed in mitochondria from maize seedlings. To increase superoxide production, it was required to inhibit C-III or C-IV by at least 30% or 50%, respectively. Below this inhibition threshold, AOX exerted the highest degree of control on superoxide production, whereas above it, the highest degree of control was exerted by C-IV. The contribution of C-III to control superoxide production became significant when AOX activity was modulated.Keywords
This publication has 31 references indexed in Scilit:
- Redox sensing and signalling associated with reactive oxygen in chloroplasts, peroxisomes and mitochondriaPhysiologia Plantarum, 2003
- Chilling tolerance of maize, cucumber and rice seedling leaves and roots are differentially affected by salicylic acidPhysiologia Plantarum, 2002
- Effect of Temperature on Rates of Alternative and Cytochrome Pathway Respiration and Their Relationship with the Redox Poise of the Quinone PoolPlant Physiology, 2002
- Evidence for a Role of Salicylic Acid in the Oxidative Damage Generated by NaCl and Osmotic Stress in Arabidopsis SeedlingsPlant Physiology, 2001
- PLANT MITOCHONDRIA AND OXIDATIVE STRESS: Electron Transport, NADPH Turnover, and Metabolism of Reactive Oxygen SpeciesAnnual Review of Plant Biology, 2001
- Oxidative phosphorylation supported by an alternative respiratory pathway in mitochondria from EuglenaBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2000
- Threshold Effects and Control of Oxidative Phosphorylation in Nonsynaptic Rat Brain MitochondriaJournal of Neurochemistry, 1996
- Mitochondrial cytochrome b: evolution and structure of the proteinBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1993
- Distribution of control of oxidative phosphorylation in mitochondria oxidizing NAD-linked substratesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1991
- Overproduction of Petunia Chloroplastic Copper/Zinc Superoxide Dismutase Does Not Confer Ozone Tolerance in Transgenic TobaccoPlant Physiology, 1991