The influence of few-layer graphene on the physiological activity of spores of the rhizosphere culture B. Subtilis sp.
Vozniakovskii A. A.1, Kanarskii A. V.2, Voznyakvskii A. P.3, Gematdinova V. M.4, Kanarskaia Z. A.2, Semenov E. I., Kidalov S. V.1
1Ioffe Institute, St. Petersburg, Russia
2Kazan National Research Technological University, Kazan, Russia
3S.V. Lebedev research Institute for Synthetic Rubber, Saint-Petersburg, Russia
4Kazan Innovative University named after V. G. Timiryasov, Kazan, Russia
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The article presents the results of a study of the effect of few-layer graphene obtained under conditions of self-propagating high-temperature synthesis from cellulose on the physiological activity of the rhizosphere spore culture of B. Subtilis sp.. It was found that few-layer graphene, as well as a dextrin/few-layer graphene composite, have a beneficial effect on the physiological activity of the rhizosphere spore culture of B. Subtilis sp.. After 270 days of cultivation, the number of viable cells of Bacillus subtilis sp. increased 4-fold in the presence of few-layer graphene, and 5-fold in the presence of a dextrin/few-layer graphene composite compared to the initial concentration. The obtained data indicate the promise of using few-layer graphene to stimulate the physiological activity of bacterial cultures, which can make few-layer graphene a useful modifying additive to agricultural soil. Keywords: few-layer graphene, Bacillus subtilis sp., soil, agricultural productivity, rhizosphere spore culture, stimulation of physiological activity.
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