Root-specific promoter

Details Root-specific promoter Root-specific promoter

C - Chemistry, Metallurgy

12

N

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

Patent

CA 2317723

A DNA which has the sequence shown in Figure 5 and which defines a gene promoter region has been isolated from maize roots. The promoter may be used for driving expression of foreign genes in the roots of plants. This is particularly useful for expressing an insecticidal toxin, such as a delta- endotoxin of Bacillus thuringiensis, to impart resistance to insect attack on the roots of plants by Coleopteran insects.

Un ADN dont la séquence est illustrée dans la figure 5, et qui définit une région promotrice d'un gène, a été isolé des racines du maïs. Ce promoteur peut être utilisé pour diriger l'expression de gènes étrangers dans les racines de végétaux, ce qui est particulièrement utile pour exprimer une toxine insecticide, par exemple la delta-endotoxine de Bacillus thurigiensis, laquelle est capable de rendre les racines de ces végétaux résistantes aux dégâts causés par les coléoptères.

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