antiauxin

A chemical that interferes with the auxin response, sometimes by the prevention of auxin transport. Some antiauxins may promote morphogenesis in vitro (e.g. 2,3,5-tri-iodobenzoate (TIBA) and 2,4,5-trichlorophenoxyacetate (2,4,5-T)) and are therefore used to stimulate the growth of some cultures.