Used for the detection and quantification of SPP (Signal Peptide Peptidase) activity in plant samples, this ELISA kit enables researchers to study protein processing and intracellular signaling pathways in plants. It is particularly useful in plant physiology and molecular biology research to monitor stress responses, pathogen defense mechanisms, and developmental processes where SPP plays a regulatory role. The kit provides a sensitive and specific method to measure SPP enzyme activity in tissue extracts, allowing high-throughput analysis in experimental studies related to plant health and biotechnology applications.