Abstract
The paper presents research data of lipid peroxidation and lectin activity in wheat seedlings at seed treatment with solution of metal nanoparticles (Zn, Ag, Fe, Mn, Cu) and sole solution of copper nanoparticles under the high pathogen infection background of Pseudocercosporella herpotrichoides (Fron) Deighton (synonym: Oculimacula yallundae (Wallwork & Sponer) Crous & W. Gams). It was shown that investigated nonionic colloidal solutions of biogenic metals have the antioxidant effect through the inhibition of the synthesis of lipid peroxidation products. The increase of lectin activity levels during the early plants ontogenesis stages was observed in wheat seedlings infected with pathogen pre-treated with the mixture of metal nanoparticles.
Highlights
Nowadays, nanopreparations are gaining more and more interest in various areas of our life
Thiobarbituric acid reactive substances (TBARS), including malonic dialdehyde (MDA), which are accumulated in plant cells under the stress conditions as the result of lipid peroxidation are used as the LPO markers
It should be noted that the investigated solutions of nonionic nanoparticles can act as antioxidants [14], inhibiting formation of TBARS, namely malonic dialdehyde, that led to lower comparing to control level of TBARS in non-infected seedlings as well as in infected seedlings treated with metal nanoparticles
Summary
Nanopreparations are gaining more and more interest in various areas of our life. They are used as biological stimulants and micronutrients as they have specific advantages over traditional solutions: they do not break up by heat and light, ensure complete plant surface moistening, can be fully absorbed by plants, and remain on the surface under the rain. Nanoparticles take part in maintenance of microelements balance, which indicates their high biological activity. Zinc, and iron, unlike their salts, are less toxic. Copper nanoparticles are seven times less toxic as compared to sulfate salt of copper. Zinc nanoparticles are 30 times and iron nanoparticles are 40 times less toxic as compared to their corresponding sulfate salts [1]
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