Antimicrobial linear peptides

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/435 (2006.01) A01N 37/18 (2006.01) A61K 38/08 (2006.01) A61P 31/04 (2006.01)

Patent

CA 2650903

The present invention relates to novel linear peptides with antimicrobial activity. Said peptides are made up of 11 amino acids, and they have the amino group of the amino acid constituting the N-terminal end in a non-derived form or functionalized with an acetyl group, p-toluene sulphonyl, benzyl or benzoyl. The amino acid constituting the C-terminal end of said peptides is in carboxamide form. The invention describes the synthesis and use of said peptides as antimicrobial agents to combat pathogenic bacteria for plants. The invention also relates to compositions containing said peptides and an auxiliary agent, and to a method for preventing and treating infections and diseases of plants caused by pathogenic bacteria.

L'invention concerne de nouveaux peptides linéaires présentant une activité antimicrobienne. Lesdits peptides sont constitués de 11 aminoacides et ont le groupe aminé de l'aminoacide qui constitue l'extrémité N-terminale dans une forme non dérivée ou fonctionnalisée avec un groupe acétyle, sulfonyle p-toluène, benzyle ou benzoyle. L'aminoacide qui constitue l'extrémité C-terminale desdits peptides se présente sous la forme de carboxamide. L'invention décrit également la synthèse et l'utilisation desdits peptides en tant qu'agents antimicrobiens pour lutter contre les bactéries pathogènes des plantes. L'invention concerne également des compositions contenant lesdits peptides et un agent auxiliaire, ainsi qu'un procédé de prévention et de traitement des infections et des maladies des plantes provoquées par les bactéries pathogènes.

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