Used in plant research to measure indole-3-acetic acid oxidase (IAAO) activity, this ELISA kit helps study auxin regulation in plants. It is widely applied in plant physiology and molecular biology to understand hormone metabolism, particularly how auxin degradation influences root development, stem elongation, and plant responses to environmental stresses. The kit enables high-throughput quantification of IAAO activity in tissue extracts, making it valuable for screening plant mutants, evaluating hormone-related gene functions, and investigating plant-microbe interactions that affect growth and development.