Used in biochemical and plant physiology research to measure levels of NADP+ and NADPH in plant tissues, this ELISA kit enables scientists to study redox reactions and oxidative stress responses in plants. It is particularly useful in photosynthesis studies, where the NADP/NADPH ratio plays a critical role in the Calvin cycle. Researchers also apply this kit to assess enzyme activities in metabolic pathways such as the pentose phosphate pathway and antioxidant defense systems. The assay supports high-throughput analysis in plant stress response experiments, including those involving drought, salinity, and pathogen attack. Suitable for laboratory use in academic, agricultural, and environmental research settings.