Chelated Silicon Mitigated the Salinity-induced Drastic Effects by Regulating the Antioxidant Activities and Biochemical Attributes of Two Different Pea Genotypes

IF 3.3 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Silicon Pub Date : 2025-05-20 DOI:10.1007/s12633-025-03337-0

Erum Rashid, Syed Ayyaz Javed, Zahoor Hussain, Shahla Rashid, Muhammad Tauseef Jaffar, Muhammad Ahmed, Atif Bilal Nasir, Hafiz Muhammad Tayyab Khan, Waleed A. A. Alsakkaf, Hayssam M. Ali

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引用次数: 0

Abstract

Purpose

Salinity stress has become a major threat to crop growth and food security for the increased population of the globe. Thus, silicon (Si) is a non-essential beneficial element for plants but has multifaceted functions regarding tolerance against abiotic stresses.

Methods

Therefore, a pot experiment was performed to examine the comparative impacts of organic and inorganic sources of Si on the vegetative and physiological behavior of two genotypes of pea plants under non-saline and saline (5 dSm⁻¹) conditions. Two pea genotypes [salt-sensitive (Ambasidar) and salt-tolerant (Samerena zard)] were used in the study, and three treatments i) chelated-Si (EDTA-Si) @ 0.5% ii) inorganic-Si (K₂O₃Si) @ 0.5% and iii) without-Si (control) were devised under three factorial completely randomized design.

Results

Data reflected the positive response of both Si sources but EDTA-Si proved more beneficial in aggravating the growth & gas exchange attributes and activity of antioxidant enzymes significantly in salt-sensitive and salt-tolerant pea genotypes under normal and saline growing conditions. Moreover, the increase in ionic contents (K, Ca, Mg, and P) was also observed except for Na⁺, Cl⁻ and Na: K ratio in pea plants when treated with EDTA-Si.

Conclusions

However, both Si sources improved the measuring traits of both salt-tolerant and salt-sensitive pea genotypes but EDTA-Si revealed a significant improvement in measured attributes of the salt-tolerant genotype as compared to the salt-sensitive. Thus, EDTA-Si ameliorated the negative effects of salinity by enhancing the plant's defense mechanisms, mediated through increased activity of antioxidant enzymes and greater uptake of nutrient ions. This improvement was attributed to enhanced vegetative growth, particularly root growth and proliferation, compared to plants treated with the inorganic form of Si.

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螯合硅通过调节两种不同基因型豌豆的抗氧化活性和生化特性，减轻了盐胁迫引起的剧烈效应

盐度胁迫已成为全球人口增长对作物生长和粮食安全的主要威胁。因此，硅（Si）对植物来说是一种非必需的有益元素，但在抵抗非生物胁迫方面具有多方面的功能。方法通过盆栽试验，比较了无机和有机硅源对两种基因型豌豆植株在无盐和含盐（5 dSm−1）条件下的营养和生理行为的影响。采用盐敏感型（Ambasidar）和耐盐型（Samerena zard）两种豌豆基因型，采用三因子完全随机设计，设计3个处理(i)螯合硅（EDTA-Si） @ 0.5%、无机硅（K2O3Si） @ 0.5%和无硅（对照）。结果在正常和盐水条件下，两种硅源对盐敏感型和耐盐型豌豆的生长、气体交换特性和抗氧化酶活性均有显著的促进作用，但EDTA-Si对两种硅源均有显著的促进作用。此外，除了Na+、Cl−和Na: K比值外，EDTA-Si处理还增加了豌豆植株的离子含量（K、Ca、Mg和P）。结论两种硅源均改善了耐盐和盐敏感豌豆基因型的测量性状，但EDTA-Si源对耐盐基因型的测量性状的改善作用显著高于盐敏感基因型。因此，EDTA-Si通过增加抗氧化酶的活性和增加营养离子的吸收来增强植物的防御机制，从而改善了盐度的负面影响。与无机形式硅处理的植物相比，这种改善归因于营养生长，特别是根生长和增殖的增强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Silicon CHEMISTRY, PHYSICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.90

自引率

20.60%

发文量

685

审稿时长

>12 weeks

期刊介绍： The journal Silicon is intended to serve all those involved in studying the role of silicon as an enabling element in materials science. There are no restrictions on disciplinary boundaries provided the focus is on silicon-based materials or adds significantly to the understanding of such materials. Accordingly, such contributions are welcome in the areas of inorganic and organic chemistry, physics, biology, engineering, nanoscience, environmental science, electronics and optoelectronics, and modeling and theory. Relevant silicon-based materials include, but are not limited to, semiconductors, polymers, composites, ceramics, glasses, coatings, resins, composites, small molecules, and thin films.