INFLUENCE OF CHITOSAN - SILVER NANOCOMPOSITES ON PROTECTIVE MECHANISMS OF SOLANUM TUBEROSUM
Abstract
We investigated the effect of new nanocomposites based on silver-containing chitosan with a chitosan-silver mass ratio of 100:1 (ChitAg 100:1) and 50:1 (ChitAg 50:1) on the resistance of potatoes to infection by the late blight pathogen Phytophthora infestans (Mont.) de Bary and lack of moisture in the soil. It was revealed that treatment with the nanocomposite ChitAg 100:1 led to a decrease in the degree of manifestation of late blight symptoms on plant leaves by up to 40% compared to 95% in the control, and increased their protein content and the activity of antioxidant enzymes (catalase and peroxidase) under conditions of lack of moisture. Probably, an increase in the mass content of chitosan in the composition of the ChitAg nanocomposite contributes to an increase in the immunostimulating properties of plants.
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Copyright (c) 2024 L. Yarullina, E. Zaikina, G. Burkhanova, E. Cherepanova, A. Sorokan, V. Tsvetkov, I. Mardanshin, I. Fatkullin, J. Kalatskaya, K. Gilevskaya
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