COS LQ

Direct bactericidal effect: chitosan oligosaccharide has a direct bactericidal effect, which can destroy the cell structure by combining with the cell wall of microorganisms, resulting in the death of microorganisms. The functional groups in chitosan oligosaccharide can combine with anions in microbial cell walls, interfere with the function of microbial cell walls, and destroy the integrity of cell membranes. This results in a barrier to the exchange of substances inside and outside the cell, eventually leading to cell death.
Immunity enhancement: chitosan oligosaccharide can enhance the plant's resistance to pathogenic microorganisms by activating the plant's immune system. chitosan oligosaccharide can activate plant defense responses, including production of antimicrobial proteins, activation of defense genes, and increase in cell wall thickness. These defense responses can increase the resistance of plants, making them more resistant to infection by pathogenic microorganisms.