Used in plant biology research to quantify levels of 12-oxophytodienoate reductase (OPR), an enzyme involved in the jasmonic acid biosynthesis pathway. This ELISA kit enables researchers to study plant defense responses against herbivores and pathogens, as OPR plays a key role in wound signaling and stress response regulation. It is widely applied in studies of plant immunity, growth regulation, and environmental stress adaptation. The assay provides a sensitive and specific method for measuring OPR protein concentration in plant tissue extracts, supporting work in agriculture, molecular biology, and physiological studies.