Isolated polypeptides, polynucleotides useful for modifying...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/29 (2006.01) C07K 14/415 (2006.01) C12N 5/10 (2006.01) C12N 15/00 (2006.01) C12N 15/82 (2006.01) A01H 5/00 (2006.01)

Patent

CA 2709517

Polynucleotides, polypeptides, plant cells expressing same and methods of using same for increasing abiotic stress tolerance water use efficiency (WUE), fertilizer use efficiency (FUE), biomass, vigor and/or yield of a plant. The method is effected by expressing within the plant an exogenous polynucleotide encoding a polypeptide comprising an amino acid sequence at least 80 % homologous to the amino acid sequence selected from the group consisting of SEQ ID NOs:33, 34, 30, 27-29, 31, 32, 35-52, 1401-1403, 1405-1435, 1437-1494, 1496-1542, 1544-1553, 1555-1559, 1561-1827, 1829-1866, 1868-2450, 2453-2458, 2460-2463, 2465-2481, 2483, 2485-2746, 2765-2769, 3052-3065 and 3067-3259, thereby increasing the water use efficiency (WUE), the fertilizer use efficiency (FUE), the biomass, the vigor and/or the yield of the plant.

La présente invention concerne des polynucléotides, des polypeptides, des cellules végétales en exprimant et leurs procédés d'utilisation pour accroître la tolérance au stress abiotique, l'efficacité d'utilisation d'eau, l'efficacité d'utilisation d'engrais, la biomasse, la vigueur et/ou le rendement d'une plante. Le procédé s'effectue par l'expression dans la plante d'un polynucléotide exogène codant pour un polypeptide comportant une séquence d'acides aminés au moins 80% homologue à la séquence d'acides aminés choisie parmi le groupe constitué de SEQ ID NOs:33, 34, 30, 27-29, 31, 32, 35-52, 1401-1403, 1405-1435, 1437-1494, 1496-1542, 1544-1553, 1555-1559, 1561-1827, 1829-1866, 1868-2450, 2453-2458, 2460-2463, 2465-2481, 2483, 2485-2746, 2765-2769, 3052-3065 et 3067-3259, permettant ainsi l'accroissement de l'efficacité d'utilisation d'eau, l'efficacité d'utilisation d'engrais, la biomasse, la vigueur et/ou le rendement de la plante.

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