Use of apiogalacturonanes and its derivatives for the stimulation of the defense and resistance reactions against biotic abiotic stresses and

摘要

The present invention relates to the use of compounds apiogalacturonanes and / or derivatives of such compounds, in particular extracted from the aquatic plants of the lemna or zostera, as agent for the stimulation of the defence reactions and the resistance of a plant, in particular of an ornamental plant or of agronomic interest, against biotic or abiotic stresses and /. The present invention also relates to a process for the stimulation of the reactions of the natural defenses of a plant, or part of a plant, against biotic stress and / or abiotic, comprising applying to the said plant, or part of a plant or in the environment of the said plant of at least one compound apiogalacturonane and / or a derivative of the compound apiogalacturonane in a liquid composition or a solid composition.