Used in biochemical and plant physiology research to measure levels of cytochrome c oxidase activity in plant tissues. Helps assess mitochondrial function and respiratory chain efficiency in plants under various environmental stresses such as drought, temperature extremes, or pathogen attack. Enables researchers to study plant energy metabolism, oxidative phosphorylation, and responses to abiotic or biotic stressors at the molecular level. Widely applied in agricultural research, plant breeding, and environmental monitoring to evaluate plant health and stress tolerance.