盐胁迫会对植物的生理和生化特性造成显著的负面影响,因此,农作物产量的降低。因此,目前的研究旨在研究壳聚糖(Cs)和壳聚糖纳米颗粒(CsNPs)减轻盐度胁迫的作用(即,25、50、100和200mMNaCl)并改善色素含量,碳水化合物含量,离子含量,脯氨酸,过氧化氢,脂质过氧化,电解质渗漏含量,以及在粘土沙质土壤中生长的菜豆的抗氧化系统。甲基丙烯酸用于合成CsNP,平均尺寸为40±2nm。盐度胁迫对产量性状产生负面影响,色素部分,和碳水化合物含量。然而,在盐胁迫下生长的植物中,Cs或CsNPs的应用显著提高了产量,色素部分,碳水化合物含量,脯氨酸,和抗氧化系统,虽然这些治疗减少了过氧化氢,脂质过氧化,和电解质泄漏。当外源施用于盐胁迫下生长的植物时,CsNP的积极作用比Cs更有益。在这种情况下,可以得出结论,CsNPs可用于减轻盐胁迫对盐渍土壤中菜豆植物的影响。
Salinity stress can significantly cause negative impacts on the physiological and biochemical traits of plants and, consequently, a reduction in the yield productivity of crops. Therefore, the current study aimed to investigate the effects of chitosan (Cs) and chitosan nanoparticles (CsNPs) to mitigate salinity stress (i.e., 25, 50, 100, and 200 mM NaCl) and improve pigment fractions, carbohydrates content, ions content, proline, hydrogen peroxide, lipid peroxidation, electrolyte leakage content, and the antioxidant system of Phaseolus vulgaris L. grown in clay-sandy soil. Methacrylic acid was used to synthesize CsNPs, with an average size of 40 ± 2 nm. Salinity stress negatively affected yield traits, pigment fractions, and carbohydrate content. However, in plants grown under salt stress, the application of either Cs or CsNPs significantly improved yield, pigment fractions, carbohydrate content, proline, and the antioxidant system, while these treatments reduced hydrogen peroxide, lipid peroxidation, and electrolyte leakage. The positive effects of CsNPs were shown to be more beneficial than Cs when applied exogenously to plants grown under salt stress. In this context, it could be concluded that CsNPs could be used to mitigate salt stress effects on Phaseolus vulgaris L. plants grown in saline soils.