Department of Botany and Microbiology, Faculty of Science, Helwan University, Cairo, Egypt.
Department of Botany, National Research Centre, Dokki, Cairo, 12622, Egypt.
Sci Rep. 2023 Oct 10;13(1):17102. doi: 10.1038/s41598-023-43677-8.
Sulfur (S) is an essential microelement for plants. Based on the chemical similarity between Se and S, selenium may affects sulphur uptake by plants. This work aimed at investigating the effect of foliar spray with sodium selenate, gum arabic coated selenium nanoparticles (GA-SeNPs ≈ 48.22 nm) and sodium sulfate on red kidney bean (Phaseolus vulgaris L.) plants. Each treatment was used at 0.0, 1, 5, 10 and 50 µM, alone or combination of sodium sulfate with either Se or nano-Se, each at 0.5, 2.5 and 5 µM concentrations. The effect of foliar spray on vegetative growth, seed quality, and some metabolic constituents of red kidney bean (Phaseolus vulgaris L.) plants were investigated. Selenium nanoparticles have been synthesized through the green route using gum arabic (as a stabilizing and coating agent. Foliar application of different concentrations of Se, nano-Se, NaSO up to 10 μM and their interaction were effective in increasing the growth criteria (i.e. shoot and root lengths, plant fresh and dry weights, number of leaves and photosynthetic area (cm plant).There was also a significant increase in photosynthetic pigment contents, yield (i.e., 100-seed weight), total carbohydrate, crude proteins and mineral contents in both leaf as compared to their untreated control plants. Furthermore, interaction between sodium sulfate with nano-Se or Se, each at 5 µM significantly increased the vegetative growth, 100-seed weight, and pigment contents in leaves and improved the nutritional value and quality of red kidney bean seeds.
硫（S）是植物必需的微量元素。基于硒和 S 的化学相似性，硒可能会影响植物对硫的吸收。本工作旨在研究亚硒酸钠、阿拉伯胶包覆的硒纳米粒子（GA-SeNPs≈48.22nm）和硫酸钠叶面喷施对红芸豆（Phaseolus vulgaris L.）的影响。每种处理均单独使用或与硫酸钠组合使用，浓度分别为 0.0、1、5、10 和 50μM，或使用 0.5、2.5 和 5μM 的亚硒酸钠和纳米硒。研究了叶面喷施对红芸豆（Phaseolus vulgaris L.）植物生长、种子质量和一些代谢成分的影响。通过使用阿拉伯胶（作为稳定剂和包覆剂）的绿色途径合成了硒纳米粒子。不同浓度的 Se、nano-Se、NaSO 叶面喷施高达 10μM 及其相互作用均有效提高了生长指标（即茎和根长、植株鲜重和干重、叶片数和光合面积（cm 植株）。与未处理对照植株相比，叶片中的光合色素含量、产量（即 100 粒种子重量）、总碳水化合物、粗蛋白和矿物质含量也显著增加。此外，5μM 时硫酸钠与纳米硒或 Se 的相互作用显著提高了红芸豆的营养生长、100 粒种子重量和叶片中的色素含量，改善了红芸豆种子的营养价值和质量。
