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Elicitor with fungicide and bactericide effect through the stimulation of natural defense mechanisms

Chitosan is a biopolymer resulting from the partial deacetylation of chitin, a structural component of the cell wall of fungi and the exoskeleton of insects and crustaceans. The term chitosan includes a family of molecules that differ in various characteristics (degree of deacetylation, molecular weight, degree of polymerization, and pKa) which influences the type of interaction with the plant or with the pathogen. 
Chitosan has a strong direct activity against fungi and bacteria. Furthermore, it can agglutinate and form a mechanical barrier at the penetration sites of pathogens, isolating healthy tissues from infected ones. Chitosan also acts as a non-specific elicitor of resistance mechanisms, it stimulates the activation of both local and systemic defenses inducing priming and SAR (Systemic Acquired Resistance).

The action of chitosan manifests itself in the plant with various metabolic manifestations: increasing of Ca 2+ in the cytosol, activation of MAP-kinases, deposition of callose, induction of oxidative ‘‘burst’’ and HR (Hypersensitive Response), synthesis of abscisic acid, and accumulation of jasmonate, biosynthesis of phytoalexins and activation of PR proteins (pathogen-related protein).

Chitosan hydrochloride 7.5%


Basic substance - Reg. EC 1107/2009, art. 23. Reg. EU 540/2011, part C. Reg. of execution EU 73/2016. SANCO/12388/2013 – rev. 2 - 20/03/2014.

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