Used in plant tissue culture to promote root formation in cuttings, Methyl Indole-3-acetate functions as a synthetic auxin. It helps regulate plant growth processes such as cell elongation, division, and differentiation. Commonly applied in agriculture and horticulture for enhancing propagation of plants through cloning techniques. Also utilized in research settings to study hormone signaling pathways in plants. Its ester form allows for better penetration through plant tissues compared to free acid forms.