METHOD OF EXPRESSING AHAS ENZYME OF SPECIFIC IMMUNITY TO IMIDAZOLINONE IN CELLS OF HOST'S TISSUE, METHOD GENERATING A VECTOR FOR GIVING SUCH SPECIFIC IMMUNITY, METHOD MAKING PLANT CELLS IMMUNE TO IMIDAZOLINONE, METHOD OF GROWING PLANTS EXHIBITING SUCH SPECIFIC IMMUNITY AND METHOD OF SELECTING EFFECTIVELY TRANSFORMES CELLS OF HOST'S TISSUE

摘要

The present invention relates to monocot genes encoding a mutant AHAS enzyme that is specifically resistant to imidazolinone herbicides. Exemplary of these genes are corn DNA sequences which encode an amino acid substitution at position 621 of the wild-type AHAS enzyme. The mutant gene can be used to transform other plants to herbicide resistance; in this regard, the invention also provides host cells and vectors containing the gene, which cells and vectors are useful in the transformation process.