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. 2020 Nov;495(1):296-299.
doi: 10.1134/S1607672920060113. Epub 2020 Dec 25.

Growth-Stimulating Activity of Natural Polymer-Based Nanocomposites of Selenium during the Germination of Cultivated Plant Seeds

V N Nurminsky  1 , A I Perfileva  2 , I S Kapustina  1 , I A Graskova  1 , B G Sukhov  3 , B A Trofimov  3
Affiliations

Growth-Stimulating Activity of Natural Polymer-Based Nanocomposites of Selenium during the Germination of Cultivated Plant Seeds

V N Nurminsky et al. Dokl Biochem Biophys. 2020 Nov.

Abstract

The growth-stimulating activity of three selenium nanocomposites (NCs) in various matrices based on arabinogalactan (NC Se/AG, 6.4% Se), starch (NC Se/St, 2% Se), and carrageenan (NC Se/Car, 12% Se) with respect to plants of radish, soybean, and potato was investigated. It was shown that the treatment of plant seeds with NCs stimulated root growth during germination. It was found that the studied NCs affected both the level of lipid peroxidation and the activity of the antioxidant enzyme glutathione peroxidase (GPX). The treatment of radish seeds with NCs stimulated root growth during their germination and reduced the content of diene conjugates (DC) in root tissues. It was shown that soaking seeds in NC Se/AG solution increased the GPX activity in the tissues of the radish root by 40%. Stimulation of soybean root growth under the influence of NC Se/Car may also be associated with the activation of GPX. Furthermore, in potato plants, this NC led to the stimulation of germination; however, this was probably due to the activation of other antioxidant enzymes. The results obtained allow us to consider Se NCs as potential plant growth stimulants.

Keywords: arabinogalactan; carrageenan; diene conjugates; glutathione peroxidase; nanocomposites; potato; radish; reactive oxygen species; selenium; soybean; starch.

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