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Updated: Feb 5, 2026

Analysis of Oxidative Stress in Zebrafish Embryos
Published on: July 7, 2014
Insights into the respiratory chain and oxidative stress
Véronique Larosa1, Claire Remacle2
1Genetics and Physiology of Microalgae, UR InBios/Phytosystems, Chemin de la Vallée, 4, University of Liège, Liège 4000, Belgium.
Abstract:
Reactive oxygen species (ROS) are highly reactive reduced oxygen molecules that result from aerobic metabolism. The common forms are the superoxide anion (O2∙-) and hydrogen peroxide (H2O2) and their derived forms, hydroxyl radical (HO∙) and hydroperoxyl radical (HOO∙). Their production sites in mitochondria are reviewed. Even though being highly toxic products, ROS seem important in transducing information from dysfunctional mitochondria. Evidences of signal transduction mediated by ROS in mitochondrial deficiency contexts are then presented in different organisms such as yeast, mammals or photosynthetic organisms.
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