Method for improving plant tolerance to environmental stress

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/29 (2006.01) A01H 5/00 (2006.01) A01H 5/10 (2006.01) C07K 14/415 (2006.01) C07K 16/16 (2006.01) C12N 5/04 (2006.01) C12N 15/82 (2006.01) C12Q 1/68 (2006.01) G01N 33/53 (2006.01)

Patent

CA 2442587

Provided are DNA sequences encoding a novel type of AP2 domain-containing transcription factor as well as methods for obtaining similar sequences. Also described are methods for obtaining plants with improved growth and enhanced stress tolerance, particularly tolerance to osmotic and dehydration stress, such methods comprising expression of such DNA sequences in a plant or parts thereof. Further described are diagnostic compositions comprising the aforementioned DNA sequences and the use of such sequences in plant breeding and/or agriculture.

L'invention concerne des séquences d'ADN codant pour un nouveau type de facteur de transcription contenant un domaine AP2 ainsi que des procédés permettant l'obtention de séquences similaires. L'invention concerne également des procédés permettant de produire des plantes présentant une croissance améliorée et une tolérance accrue aux stress, en particulier au stress osmotique et au stress provoqué par la déshydratation. Ces procédés comprennent l'expression de ces séquences d'ADN dans des plantes ou dans des parties de plantes. L'invention concerne en outre des compositions diagnostiques comprenant les séquences d'ADN décrites et l'utilisation de ces séquences pour la sélection des plantes et/ou l'agriculture.

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