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2018, № 72

UDC: 634.11 634.12
GSNTI: 68.35.53

Efficient and safe method of health potato with nanokomposites

Synthesized new nanobiocomposite, representing nanoparticles rengineering red elemental selenium (average size 67 nm) uniformly encapsulated in the macromolecules of arabinogalactan, and starch. Arabinogalactan is a polysaccharide isolated from plants and consisting of the remains of two monosaccharides: galactose and arabinose. Starch is the most common carbohydrate, the structural elements of this polymer compound - glucose molecules - can be used by many microorganisms in the food chain. Silver(0)-containing nanocomposite in the matrix of humic acids is also obtained. Silver has a bactericidal effect, and humic substances are stimulants, catalysts and buffer chemicals in plant life. The effect of these nanocomposites on the viability of bacterial phytopathogen of potato Clavibacter michiganensis ssp sepedonicus was studied. The target metabolic (trophic) delivery of antimicrobial selenium and silver nanoparticles to bacteria cells by means of their arabinogalactan, starch and humic matrices was recorded. The treatment of potato plants by the nanocomposites under study did not have a negative effect on it. It is shown that these nanocomposites have a bactericidal effect and no negative impact on potato plants. The obtained nanocomposites of elemental selenium and silver in various matrices can be considered as a new antimicrobial agent for potato healing with minimal side effect.
Keywords: Nanocomposites, Clavibacter michiganensis ssp. sepedonicus, potatoes
DOI: 10.21515/1999-1703-72-118-122

References:

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Authors:

1. Graskova Irina Alekseevna, DSc in Biology, Senior Researcher; Laboratory of Plant Microbial Interactions, Siberian Institute of Plant Physiology and Biochemistry, SB RAS, Irkutsk.
2. Perfilieva Alla Innokentievna, Phd in Biology, Research Associate; Laboratory of Plant Microbial Interactions, Siberian Institute of Plant Physiology and Biochemistry, SB RAS, Irkutsk.
3. Nozhkina Olga Aleksandrovna, Post-Graduate Student; Laboratory of Plant Microbial Interactions, Siberian Institute of Plant Physiology and Biochemistry, SB RAS, Irkutsk.
4. Klimenkov Igor Victorovich, Phd in Biology, Senior Researcher, Limnological Institute of SB RAS, Irkutsk.
5. Sukhov Boris Gennadievich, Phd in Chemistry, Deputy Director for Research, Irkutsk Institute of Chemistry SB RAS. AE Favorsky, Siberian Branch of the Russian Academy of Sciences.