Used in plant physiology and metabolic research to quantify NADP-malic enzyme (NADP-ME) levels in plant tissues. This ELISA kit enables accurate measurement of enzyme concentration, supporting studies on photosynthesis, particularly in C4 and CAM plants where NADP-ME plays a key role in carbon fixation. It is also applied in stress response research, as NADP-ME activity can change under drought, salinity, and other environmental stresses. The kit supports high-throughput analysis in agricultural and biochemical laboratories, aiding in the development of stress-resistant crop varieties and understanding plant energy metabolism.