Used in plant biology research to quantify isobranchic acid synthase (ICS) enzyme levels, this ELISA kit enables scientists to study the biosynthesis of salicylic acid, a key hormone involved in plant defense responses against pathogens. It is widely applied in monitoring plant immune activation, especially in stress response studies and genetic research involving disease-resistant crop development. The kit supports high-throughput analysis of ICS protein concentration in plant tissue extracts, making it valuable in both academic and agricultural research settings.