Used for detecting and quantifying salicylic acid (SA) signaling activity in plant samples, this ELISA kit helps researchers study plant defense mechanisms against pathogens. It is widely applied in plant biology and agricultural research to monitor systemic acquired resistance (SAR) responses. The kit enables high-throughput analysis of SA-related enzyme activity, supporting studies on plant stress responses, immune activation, and development of disease-resistant crops. It is suitable for use in laboratory settings where precise measurement of plant hormone signaling is required.