The auxin indole-3-butyric acid controls adventitious rooting in Arabidopsis thaliana thin cell layers by its conversion into indole-3-acetic acid and nitric oxide production
Indole-3-butyric acid (IBA) is the natural precursor of the main plant auxin, indole-3-acetic acid (IAA), and both are able to induce adventitious root (AR) formation in different types of explants, when applied exogenously, alone or combined with other phytohormones.