Polinucleotu00ecdeo isolated enzyme with activity arogenato dehydrogenase, chimeric gene, vector, expression or processing plant cell transformed host organism.Process of preparation of enzyme arogenato dehydrogenase, identification process of a compound, the compound herbicides.A compound herbicide tolerant plants and the production process of the compound herbicide tolerant plants.

摘要

"Polinucleotu00ecdeo isolated enzyme with activity arogenato dehydrogenase, chimeric gene, vector, expression or processing plant cell transformed host organism.Process of preparation of enzyme arogenato dehydrogenase, identification process of a compound, the compound herbicides.A compound herbicide tolerant plants and the production process of the compound herbicide tolerant plants.The present invention has for object new enzymes that have a arogenato dehydrogenase activity, in particular arogenato dehydrogenase enzymes of plants.As well as the genes coding for these enzymes.The enzymes arogenato dehydrogenase according the present invention catalyze the last step in the metabolic pathway of the biosynthesis of tyrosine, and are, as such, potential targets of herbicides.The present invention is, therefore, in the process of identification of compounds that target these enzymes herbicides.These compounds, herbicides which prevent the biosynthesis of tyrosine and remained in these enzymes.The present invention also has object transgenic plants tolerant to herbicide compounds that target an enzyme involved in the biosynthesis pathway of tyrosine.In particular, an enzyme arogenato dehydrogenase.These plants become tolerant by expression in their tissues of an enzyme prefenato dehydrogenase.The enzyme which is insensitive to these compounds, herbicides, and allows the plant synthesize tyrosine despite a treatment by said herbicide compounds.