Plant-signalling ligand like proteins

C - Chemistry – Metallurgy – 12 – N

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Details

C12N 15/82 (2006.01) A01H 5/00 (2006.01) C07K 14/415 (2006.01)

Patent

CA 2412821

The invention relates to the field of plant growth and development, more in particular to the communication between plant cells influencing architectural or phenotypical characteristics such as their rate and pattern of division, orientation of elongation, organogenesis or differentiation patterns. The invention provides a method for modulating plant phenotype or architecture, such as by modulating or changing plant growth, it's development or defense responses, by modulating its rate or pattern of cell division, orientation of elongation, organogenesis or differentiation patterns, comprising providing a plant or plant material with recombinant ligand-like protein (LLP) or a functional fragment thereof, said protein or fragment at least comprising an LLP box as provided by the invention comprising an amino acid motif XRXXXXGXXXXHX.

L'invention se rapporte au domaine de la croissance et du développement des plantes, plus particulièrement à la communication entre cellules végétales ayant une influence sur les caractéristiques architecturales ou phénotypiques telles que leur vitesse et leur modèle de division, leur orientation d'allongement, leur organogenèse ou leurs modèles de différenciation. L'invention concerne un procédé de modulation du phénotype ou de l'architecture de plantes, par exemple par modulation ou changement de croissance végétale, leur développement ou leurs réactions de défense, par modulation de leur vitesse ou de leur modèle de division cellulaire, leur orientation d'allongement, leur organogenèse ou leurs modèles de différenciation. Selon l'invention on se sert d'une plante ou d'une matière végétale avec une protéine de type ligand (LLP) de recombinaison ou un fragment fonctionnel de ladite protéine, ladite protéine ou ledit fragment comprenant au moins une boîte LLP qui contient un motif d'acide aminé XRXXXXGXXXXHX, correspondant à l'invention

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