Used in plant biology research to quantify zeaxanthin oxygenase enzyme levels, this ELISA kit enables scientists to study carotenoid metabolism pathways in photosynthetic organisms. It supports investigations into photoprotection mechanisms, such as non-photochemical quenching, where zeaxanthin plays a critical role in dissipating excess light energy. Researchers use the kit to analyze enzyme expression under various environmental stresses like high light intensity, temperature extremes, or drought, helping to understand plant stress responses. It is also applied in genetic studies to evaluate the impact of gene knockouts or overexpression on enzyme activity in model plants and crops. The assay provides a reliable tool for advancing research in plant physiology, crop improvement, and photosynthesis efficiency.