Plants having increased tolerance to herbicides

摘要

The present invention relates to a method for controlling undesired vegetation at a plant cultivation site. The claimed method comprises the steps of providing, at the site, a plant that comprises one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a PPO-inhibiting herbicide by applying to the site an effective amount of the herbicide. The invention further relates to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining the same.