Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russia.
Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russia.
Dokl Biochem Biophys. 2020 Nov;495(1):296-299. doi: 10.1134/S1607672920060113. Epub 2020 Dec 25.
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.
研究了三种基于阿拉伯半乳聚糖（NC Se/AG，含 6.4%硒）、淀粉（NC Se/St，含 2%硒）和卡拉胶（NC Se/Car，含 12%硒）的硒纳米复合材料（NCs）在萝卜、大豆和土豆植物中的生长刺激活性。结果表明，NCs 处理植物种子可刺激其在萌发过程中的根生长。研究发现，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 NCs 处理萝卜种子可刺激其萌发过程中的根生长，并降低根组织中二烯轭合物（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 对大豆根生长的刺激作用也可能与 GPX 的激活有关。此外，在马铃薯植株中，这种 NC 可刺激其萌发；然而，这可能是由于其他抗氧化酶的激活。研究结果表明，硒纳米复合材料可作为潜在的植物生长刺激剂。
