Used in biochemical and molecular research to quantify sorbitol dehydrogenase enzyme levels in plant samples. Helps assess plant metabolic responses under stress conditions such as drought, salinity, or pathogen attack. Enables researchers to study the polyol pathway and its role in osmoregulation and redox balance. Suitable for monitoring enzyme activity changes during plant development and in genetically modified plants. Supports studies in plant physiology, stress biology, and crop improvement programs.