C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 15/82 (2006.01) C07K 14/415 (2006.01) C12N 9/02 (2006.01) C12N 15/11 (2006.01) C12Q 1/68 (2006.01)
Patent
CA 2378814
The invention relates to a gene that encodes a cytokinin-metabolizing enzyme, designated SPS, that has been isolated from an Arabidopsis mutant, sps. The sps mutant exhibits an abnormal shoot-branching pattern and developmental program. The SPS gene has the nucleotide sequence of SEQ ID NO: 1. Also disclosed are methods for isolating a plant gene that encodes a cytokinin- metabolizing enzyme. Further, the invention includes novel plants transformed with the SPS gene operatively linked to a plant-active promoter as well as methods for altering growth or development of plants containing an SPS gene.
La présente invention concerne un gène qui code une enzyme métabolisant la cytokinine, qui a été baptisé SPS et qui a été isolé à partir d'un mutant d'Arabidopsis, sps. Le mutant sps présente un motif de branchaison de pousses et un programme de développement anormaux. Le gène SPS possède la séquence nucléotidique SEQ ID NO :1. L'invention se rapporte également à des procédés permettant d'isoler un gène végétal qui code une enzyme métabolisant la cytokinine. L'invention concerne en outre de nouvelles plantes transformées par un gène SPS lié de manière fonctionelle à un promoteur actif chez les plantes ainsi que des procédés permettant de modifier la croissance ou le développement de plantes contenant un gène SPS.
Sundaresan Venkatesan
Tantikanjana Titima
Institute Of Molecular Agrobiology
Osler Hoskin & Harcourt Llp
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