Used in plant physiology and molecular biology research to quantify NADP-malic enzyme (NADP-ME) activity in plant tissues. This kit helps study carbon metabolism, particularly in C4 and CAM photosynthetic pathways, where NADP-ME plays a key role in CO2 concentration mechanisms. It enables researchers to assess enzyme activity under different environmental conditions such as drought, temperature stress, or light variation, supporting work in improving photosynthetic efficiency and crop productivity. The assay is also useful in genetic studies to compare NADP-ME levels across plant species or transgenic lines.