Isolated polypeptides and polynucleotides useful for...

C - Chemistry – Metallurgy – 12 – N

Patent

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

Patent

CA 2732773

Provided are methods of increasing nitrogen use efficiency, fertilizer use efficiency, yield, growth rate, vigor, biomass, oil content and/or abiotic stress tolerance of a plant by expressing within the plant an exogenous polynucleotide comprising a nucleic acid sequence at least 80 % identical to SEQ ID NO: 2506, 2512, 2442, 2496, 2446, 1, 2, 4, 7, 8, 11, 12, 13, 16-19, 21-60, 63-128, 130-137, 270-287, 289-293, 295-306, 308-362, 364-666, 671, 673- 1333, 2414-2441, 2443-2445, 2447-2455, 2458-2495, 2497-2505, 2507-2511, 2513-2521 or 2522; and of increasing nitrogen use efficiency, fertilizer use efficiency and/or oil content of a plant by expressing within the plant an exogenous polynucleotide comprising a nucleic acid sequence at least 80 % identical to SEQ ID NO: 3, 5, 6, 9, 10, 14, 15, 288, 294, 2398-2412 or 2413. Also provided are isolated polynucleotides and polypeptides which can be used to increase nitrogen use efficiency, fertilizer use efficiency, yield, growth rate, vigor, biomass, oil content and/or abiotic stress tolerance of a plant of a plant.

La présente invention concerne des procédés destinés à augmenter l'efficacité de l'utilisation de l'azote, l'efficacité de l'utilisation d'engrais, le rendement, le taux de croissance, la vitalité, la biomasse, la teneur en huile et/ou la tolérance au stress abiotique d'une plante en exprimant dans la plante un polynucléotide exogène comprenant une séquence d'acides nucléiques au moins identique à 80 % à la SEQ ID No. : 2506, 2512, 2442, 2496, 2446, 1, 2, 4, 7, 8, 11, 12, 13, 16-19, 21-60, 63-128, 130-137, 270-287, 289-293, 295-306, 308-362, 364-666, 671, 673-1333, 2414-2441, 2443-2445, 2447-2455, 2458-2495, 2497-2505, 2507-2511, 2513-2521 ou 2522. Ceux-ci sont également utiles pour augmenter l'efficacité de l'utilisation de l'azote, l'efficacité de l'utilisation d'engrais et/ou la teneur en huile d'une plante en exprimant dans la plante un polynucléotide exogène comprenant une séquence d'acides nucléiques au moins identique à 80 % à la SEQ ID No. : 3, 5, 6, 9, 10, 14, 15, 288, 294, 2398-2412 ou 2413. L'invention concerne également des polynucléotides et des polypeptides isolés qui peuvent être utilisés pour augmenter l'efficacité de l'utilisation de l'azote, l'efficacité de l'utilisation d'engrais, le rendement, le taux de croissance, la vitalité, la biomasse, la teneur en huile et/ou la tolérance au stress abiotique d'une plante.

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