Plant stress tolerance from modified ap2 transcription factors

Details Plant stress tolerance from modified ap2 transcription factors Plant stress tolerance from modified ap2 transcription factors

C - Chemistry, Metallurgy

12

N

C12N 15/82 (2006.01) A01H 5/00 (2006.01)

Patent

CA 2591936

The invention relates to modified plant transcription factor polypeptides, polynucleotides that encode them, homologs from a variety of plant species, and methods of using the polynucleotides and polypeptides to produce transgenic plants having advantageous properties, including increased abiotic or biotic stress tolerance, as compared to wild-type or control plants. The modifications to the plant transcription factor sequences are responsible for producing fewer and less severe adverse morphological and developmental characteristics in plants overexpressing these sequences than would be caused by overexpressing the sequences without the modifications.

L'invention concerne des polypeptides de facteurs de transcription végétaux modifiés, des polynucléotides codant ceux-ci, des homologues d'une variété d'espèces végétales, et des procédés d'utilisation des polynucléotides et des polypeptides pour la production de végétaux transgéniques ayant des propriétés avantageuses, y compris une tolérance au stress abiotique ou biotique accrue, comparativement à des végétaux témoins ou de type sauvage. Les modifications des séquences des facteurs de prescription végétaux sont responsables de la production de caractéristiques morphologiques et de développement adverses moins nombreuses et moins sévères chez les végétaux surexprimant ces séquences, que celles qui seraient causées par surexpression des séquences sans les modifications.

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