Used in biochemical and medical research to quantify mannose phosphate isomerase (MPI) enzyme levels in plant samples. This kit enables researchers to study MPI activity in metabolic pathways related to carbohydrate metabolism, particularly in glycolysis and the biosynthesis of cell wall components. It supports analysis of plant stress responses, developmental processes, and genetic studies where MPI expression may be altered. The assay is also useful in comparative studies between plant species or under different environmental conditions to assess metabolic regulation.