Method for improving productivity of plant by chloroplast...

C - Chemistry – Metallurgy – 12 – N

Patent

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

Patent

CA 2557854

An object of the present invention is to provide a transformed plant which has high photosynthesis activity, and has promoted growth and productivity as compared with a wild strain, and has no fear of diffusion of an introduced gene by pollens, by expressing a trait of a specified gene by chloroplast technology in a higher plant. According to the present invention, there is provided a transformed plant using a gene recombinant vector having an expression cassette for enhancing photosynthesis activity, containing a DNA fragment comprising a gene encoding a protein having fructose-1,6- bisphosphatase sedoheptulose-1,7-bisphosphatase activities between a nucleotide sequence complementary to the chloroplast gene rbcL and the chloroplast gene aacD.

Un objet de la présente invention est de proposer une plante transformée ayant une forte activité de photosynthèse, et ayant une meilleure croissance et une meilleure productivité par rapport à une souche sauvage, sans crainte de diffusion d~un gène introduit par les pollens, en exprimant un trait de gène spécifié selon une technologie chloroplaste dans une plante supérieure. Selon la présente invention, il est prévu une plante transformée en utilisant un vecteur recombinant de gènes ayant une cassette d~expression pour renforcer l~activité de photosynthèse, contenant un fragment d~ADN comprenant un gène codant une protéine ayant des activités de fructose-1,6-bisphosphatase et sedoheptulose-1,7-bisphosphatase entre une séquence nucléotidique complémentaire au gène chloroplaste rbcL et au gène chloroplaste aacD.

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