Used in plant biology research to quantify granule-bound starch synthetase (GBSS), an enzyme critical for amylose synthesis in starch-producing tissues. The ELISA kit enables precise measurement of GBSS protein levels in plant extracts, supporting studies on starch biosynthesis, grain quality, and genetic modification in crops like rice, maize, and potato. Widely applied in agricultural research, breeding programs, and functional genomics to evaluate enzyme expression under different genetic or environmental conditions.