磁性银/锌/铁纳米复合材料的绿色合成减轻了聚甲基丙烯酸甲酯纳米塑料和砷的有害影响，改善了小麦的生化组成

IF 6.8 Q1 PLANT SCIENCES

Plant Stress Pub Date : 2025-08-08 DOI:10.1016/j.stress.2025.100984

Sevda Alizadeh , Latifeh Pourakbar , Sina Siavash Moghaddam

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引用次数: 0

摘要

随着纳米微塑料和重金属的植物毒性，开发适当的解决方案来防止这些污染物进入植物并减轻其有害影响已成为当务之急。以马蹄莲植物提取物为原料合成了银/锌/铁绿磁性纳米复合材料（Ag/Zn/Fe），并用TEM、XRD、FESEM等手段对其进行了表征。为了探讨砷（As: 50或100 mg/L）、聚甲基丙烯酸甲酯纳米塑料（PMMANPs: 50或500 mg/L）和银/锌/铁（100 mg/L）对小麦植物培养基的影响，采用随机完全区组设计进行了因子试验。TEM图像显示，根和叶中存在PMMANPs，叶中存在Ag/Zn/Fe。结果表明，PMMANPs和Ag/Zn/Fe降低了植物对砷的吸收。As和PMMANPs均能提高植物总酚含量（TPC）、总黄酮含量（TFC）和DPPH自由基清除能力。它们还增加了过氧化氢（H2O2）和丙二醛（MDA）含量。Ag/Zn/Fe通过降低砷和PMMANPs处理下的丙二醛和H2O2、TPC和TFC，提高了小麦的耐受性。各处理均改变了叶片的多酚谱。随着肉桂酸、咖啡酸、没食子酸、绿原酸和对香豆酸的增加，As+PMMANPs增强迷迭香酸、槲皮素和绿原酸。Ag/Zn/Fe增加了非胁迫处理下没食子酸和绿原酸、迷迭香酸和绿原（50 mg/L）以及槲皮素和咖啡酸（100 mg/L）的含量。上述结果表明，Ag/Zn/Fe能减轻As和PMMANPs对小麦植株的不利影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Green synthesis of magnetic silver/zinc/iron nanocomposite mitigates detrimental effects of polymethyl methacrylate nanoplastics and Arsenic and ameliorates biochemical compositions in Triticum aestivum L

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With the phytotoxicity of nano-microplastics and heavy metals, it becomes imperative to develop appropriate solutions to prevent the entry of these pollutants into plants and to mitigate their harmful effects. The silver/zinc/iron green magnetic nanocomposite (Ag/Zn/Fe) was synthesized using Malva Sylvestris plant extract and characterized by TEM, XRD, FESEM. To explore the effects of Arsenic (As: 50 or 100 mg/L), polymethyl methacrylate nanoplastics (PMMANPs: 50 or 500 mg/L), and Ag/Zn/Fe (100 mg/L) in the wheat plant medium, a factorial experiment employing a randomized complete block design was conducted. TEM images showed the presence of PMMANPs in the roots and leaves, and Ag/Zn/Fe in the leaves. The results indicated that PMMANPs and Ag/Zn/Fe reduced As absorption into the plants. Both As and PMMANPs increased total phenol content (TPC), total flavonoid content (TFC), and DPPH radical scavenging activity. They also increased hydrogen peroxide (H₂O₂) and malondialdehyde (MDA) content. Ag/Zn/Fe improved wheat tolerance by reducing MDA and H₂O₂, TPC and TFC under As and PMMANPs. Polyphenol profile of leaves was changed by all treatments. As increased cinnamic acid, caffeic acid, gallic acid, chlorogenic acid, and p-coumaric, and As+PMMANPs enhanced rosmarinic acid, quercetin and chlorogenic acid. Ag/Zn/Fe increased gallic acid and chlorogenic acid in non-stressed treatments, rosmarinic acid and chlorogenic at 50 mg/L As, and quercetin and caffeic acid at 100 mg/L As. These results suggest that Ag/Zn/Fe mitigated the adverse effects of As and PMMANPs in wheat plants.

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来源期刊

Plant Stress PLANT SCIENCES-

CiteScore

5.20

自引率

8.00%

发文量

审稿时长

63 days

期刊介绍： The journal Plant Stress deals with plant (or other photoautotrophs, such as algae, cyanobacteria and lichens) responses to abiotic and biotic stress factors that can result in limited growth and productivity. Such responses can be analyzed and described at a physiological, biochemical and molecular level. Experimental approaches/technologies aiming to improve growth and productivity with a potential for downstream validation under stress conditions will also be considered. Both fundamental and applied research manuscripts are welcome, provided that clear mechanistic hypotheses are made and descriptive approaches are avoided. In addition, high-quality review articles will also be considered, provided they follow a critical approach and stimulate thought for future research avenues. Plant Stress welcomes high-quality manuscripts related (but not limited) to interactions between plants and: Lack of water (drought) and excess (flooding), Salinity stress, Elevated temperature and/or low temperature (chilling and freezing), Hypoxia and/or anoxia, Mineral nutrient excess and/or deficiency, Heavy metals and/or metalloids, Plant priming (chemical, biological, physiological, nanomaterial, biostimulant) approaches for improved stress protection, Viral, phytoplasma, bacterial and fungal plant-pathogen interactions. The journal welcomes basic and applied research articles, as well as review articles and short communications. All submitted manuscripts will be subject to a thorough peer-reviewing process.