Peroxisomes as a source of superoxide and hydrogen peroxide in stressed plants (original) (raw)

Peroxisomes, essential cellular organelles, produce superoxide radicals and hydrogen peroxide (H2O2) during stress in plants. This study highlights the dual roles of superoxide dismutases (SODs) within peroxisomes: protecting cells from superoxide toxicity and facilitating the signaling pathways associated with plant stress responses. The accumulation of H2O2 serves not only as an indicator of cellular stress but also as a signaling molecule that influences gene expression and cellular function, emphasizing the importance of peroxisomes in responding to environmental challenges.