Stress tolerance in plants

A - Human Necessities – 01 – H

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A01H 1/00 (2006.01) C12N 5/04 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2620912

Transcription factor polynucleotides and polypeptides incorporated into expression vectors have been introduced into plants and were ectopically expressed. Transgenic plants transformed with many of these expression vectors have been shown to be more resistant to disease (in some cases, to more than one pathogen), or more tolerant to an abiotic stress (in some cases, to more than one abiotic stress). The abiotic stress may include salt, hyperosmotic stress, heat, cold, drought, or low nitrogen conditions.

Cette invention concerne des polynucléotides et des polypeptides de facteur de transcription incorporés dans des vecteurs d'expression qui ont été introduits dans des plantes et ont été exprimés ectopiquement. Chez des plantes transgéniques transformées au moyen d'un grand nombre de ces vecteurs d'expression, on a observé une résistance accrue à la maladie (et dans certains cas, à plus qu'un agent pathogène) ou une plus grande tolérance au stress abiotique (dans certains cas à plus qu'un stress abiotique). Le stress abiotique peut inclure le sel, le stress hyperosmotique, la chaleur, le froid, la sécheresse ou des conditions pauvres en azote.

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