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The involvement of ROS and products of ROS-dependent oxidation in cellular signaling network. The main sources of ROS (marked with blue arrows) include mitochondria, chloroplast, NADPH oxidase and cell-wall peroxidases. Accumulated ROS participate in cellular signaling (marked with pink arrows) directly or indirectly through derivatives of lipid, protein and mRNA oxidation. Detailed description can be found in the text.
