Used in plant physiology research to quantify pyruvate dehydrogenase kinase (PDK) levels in plant tissues. Helps study metabolic regulation, particularly in mitochondrial energy metabolism and the transition between glycolysis and the citric acid cycle. Widely applied in research on plant stress responses, photosynthesis efficiency, and carbohydrate metabolism. Enables scientists to monitor changes in PDK expression under environmental stresses such as drought, temperature extremes, or nutrient deficiency. Supports development of improved crop varieties by identifying metabolic markers linked to stress tolerance and yield.