Search

Today there are no longer any basic problems involved in isolating and characterizing plant genes. Our knowledge of the structure and function of the genes so far sequenced provides a beginning understanding of gene regulation in plants. In connection with the recently developed methods of gene transfer to plant cells, the most important application is the production of plants with new characteristics through genetic engineering. Since the genes can be transferred from any kind of plant—indeed even from any organism—completely new possibilities are opened up for plant breeding.

Biologie de la cellule vegetale: techniques de cultures cellulaires, utilisation de protoplastes, selection de mutants in vitro, importance de la biologie de la cellule pour le genie genetique. Transfert d'ADN: systeme utilisant Agrobacterium tumefaciens, transformation directe de cellules avec du DNA isole. Expression genique chez les plantes. Applications du genie genetique: obtention de plantes resistantes, modifications de la composition des substances vegetales, manipulation des processus physiologiques, fixation de l'azote. Problemes et risques