The present invention refers to method for producing a transgenic plant with increased herbicide tolerance or resistance as compared to a corresponding non-transformed wild type plant, comprising transforming a plant cell or a plant cell nucleus or a plant tissue with a nucleic acid molecule encoding a mutated HPPD polypeptide, as well as to the nucleic acid, and plants with increased HPPD-inhibiting herbicide tolerance or resistance comprising the nucleic acid of the invention.