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.

中文翻译：

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天然聚合物基硒纳米复合材料在栽培植物种子萌发过程中的生长刺激活性

 抽象的

三种硒纳米复合材料 (NC) 在基于阿拉伯半乳聚糖（NC Se/AG，6.4% Se）、淀粉（NC Se/St，2% Se）和角叉菜胶（NC Se/Car，12）的各种基质中的生长刺激活性对萝卜、大豆和马铃薯植物进行了研究。结果表明，用 NC 处理植物种子可刺激发芽过程中的根部生长。结果发现，所研究的NCs影响脂质过氧化水平和抗氧化酶谷胱甘肽过氧化物酶（GPX）的活性。用 NC 处理萝卜种子可刺激发芽期间的根部生长，并降低根部组织中二烯结合物 (DC) 的含量。结果表明，将种子浸泡在 NC Se/AG 溶液中可使萝卜根组织中的 GPX 活性增加 40%。 NC Se/Car 影响下大豆根系生长的刺激也可能与 GPX 的激活有关。此外，在马铃薯植物中，这种 NC 会刺激发芽；然而，这可能是由于其他抗氧化酶的激活所致。获得的结果使我们能够将 Se NC 视为潜在的植物生长刺激剂。