Abstract
The influence of nanocomposites (NC) of selenium in matrices of arabinogalactan (Se/AG) and starch (Se/St) on in vitro vegetation of potato plants, peroxidase activity, and reactive oxygen species has been thoroughly studied. It has been shown that these nanocomposites of selenium have antimicrobial effect to the phytopathogenic bacterium Clavibacter michiganensis ssp. sepedonicus (Cms). In the present investigation, it has been shown that Se/AG NC (6.4% of Se) and Se/St NC (12.0% of Se) have no negative impact on the potato plants healthy and Cms infected, while stimulating their growth, number of leaves and weight of the vegetative part. Se/AG NC has shown a positive effect on potato plants by increasing its immune status by increasing the ROS content and increasing the peroxidase activity. With the use of the element analysis technique, it has been shown that scrutinized nanocomposites are not accumulated in potato plants after the bactericidal processing with the nanocomposites. Se/AG NC and Se/St NC as potential agents used for treatment of potato plants against pathogenic bacteria.
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ACKNOWLEDGMENTS
Our investigation has been conducted with the use of equipment of the Bioresourse Center, Siberian Branch, Russian Academy of Sciences.
Funding
This investigation has been supported by the grant of President of Russian Federation for Young Post-Graduate Scientists, no. МК-1220.2019.11, by the Russian Foundation for Basic Research, and Government of Irkutsk oblast, grant no. 17-416-380001.
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Perfileva, A.I., Nozhkina, O.A., Graskova, I.A. et al. Selenium Nanocomposites Having Polysaccharid Matrices Stimulate Growth of Potato Plants in Vitro Infected with Ring Rot Pathogen. Dokl Biol Sci 489, 184–188 (2019). https://doi.org/10.1134/S0012496619060073
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DOI: https://doi.org/10.1134/S0012496619060073