Stress-induced transcription factor derived from maize

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/09 (2006.01) A01H 1/00 (2006.01) A01H 5/00 (2006.01) C12N 1/15 (2006.01) C12N 1/19 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01)

Patent

CA 2620766

This invention relates to a stress-inducible transcription factor derived from maize, a gene encoding the same, and a method for using the same. Specifically, this invention provides a gene comprising the following DNA (a) or (b): (a) DNA consisting of the nucleotide sequence as shown in SEQ ID NO: 1; or (b) maize-derived DNA hybridizing under stringent conditions with DNA consisting of a nucleotide sequence that is complementary to the DNA consisting of the nucleotide sequence as shown in SEQ ID NO: 1 and encoding a protein that regulates the transcription of a gene located downstream of a stress responsive element. Further, this invention relates to a transgenic plant having improved tolerance to environmental stress, such as high-temperature or dehydration stress, into which such gene has been introduced.

La présente invention concerne un facteur de transcription inductible par le stress et tiré du maïs ; un gène codant pour le facteur de transcription ; et un procédé d'utilisation de ce facteur de transcription et de ce gène. Plus précisément, l'invention concerne un gène contenant l'ADN (a) ou (b) suivant : (a) un ADN comprenant la séquence de bases représentée par SEQ ID NO : 1 ; et (b) un ADN tiré du maïs et capable de s'hybrider dans des conditions stringentes avec un ADN comprenant une séquence de bases complémentaire de l'ADN comprenant la séquence de bases représentée par SEQ ID NO : 1 et codant pour une protéine inhibant la transcription d'un gène situé en aval d'un élément sensible au stress. L'invention concerne une plante transgénique dans laquelle a été transféré le gène décrit ci-dessus et qui présente des propriétés améliorées de tolérance envers un stress environnemental tel que des températures élevées ou la sécheresse.

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