Used for the quantitative measurement of ASMT (Acetylserotonin O-methyltransferase) enzyme activity in plant tissue samples. This ELISA kit enables researchers to assess the functional levels of ASMT, a key enzyme involved in melatonin biosynthesis in plants. It is widely applied in plant physiology and stress response studies, helping to understand how plants regulate melatonin production under environmental stresses such as drought, salinity, and pathogen attack. The assay supports high-throughput analysis, making it suitable for agricultural research and breeding programs focused on enhancing plant resilience and optimizing growth conditions.