了解CeO2纳米颗粒对大豆（Glycine max L.Merrill）在土壤介质中生长和生理的植物毒性作用†

IF 5.1 2区环境科学与生态学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Environmental Science: Nano Pub Date : 2023-09-05 DOI:10.1039/D3EN00310H

Gui Xin, Shixian Fan, Yong Zhao, Qingguo Meng, Xuanzhen Li, Fawen Zhang, Chaonan Dong, Chunlei Jiao, Changjian Xie, Yuhui Ma, Xiao He, Zhiming Zhang and Zhiyong Zhang

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引用次数: 0

摘要

为了研究CeO2纳米颗粒（NPs）对作物的植物毒性作用，在0、25、75和225 mg kg−1添加CeO2 NPs的土壤中培养大豆植株至成熟（播种后96天，DAS）。使用25 mg kg−1 CeCl3的类似处理作为离子对照进行比较。在21和96 DAS条件下，对植物生长、常量和微量营养素的积累和分布、Ce的化学种类、抗氧化酶活性和丙二醛（MDA）水平进行了检测。CeO2 NPs会对大豆植株的生长发育产生负面影响，但仅在测试的最高浓度（225 mg kg−1）和最晚的时间点，与未处理的对照植株相比，CeO2 NPs显著降低了33.8%的生物量。生化分析表明，在96DAS条件下，超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）的活性随暴露浓度的增加而呈下降趋势，而MDA的积累则增加。CeO2-NP处理改善了Ca、Fe、Zn、Mn、Cu和Mo在根系中的积累；茎中Ca、Fe和Zn的含量；以及叶片中的P、Mn和Mo。Ce3+离子和CeO2-NPs对大豆植株具有非常相似但不完全相同的农艺、生理和生化作用。基于同步辐射的X射线吸收近边缘结构（XANES）分析表明，在225 mg kg−1 CeO2 NP处理的植物中，根中Ce（III）的百分比从4.5%（21 DAS）增加到11.8%（96 DAS）。本研究结果表明，在实验条件下，CeO2-NPs和Ce3+离子可能具有共同的毒性机制，Ce（III）物种在CeO2-NPs对大豆的毒性作用中起着重要作用。

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Understanding the phytotoxic effects of CeO2 nanoparticles on the growth and physiology of soybean (Glycine max L. Merrill) in soil media†

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Understanding the phytotoxic effects of CeO2 nanoparticles on the growth and physiology of soybean (Glycine max L. Merrill) in soil media†

To investigate the phytotoxic effects of CeO2 nanoparticles (NPs) on crop, soybean plants were cultivated in soil amended with CeO2 NPs at 0, 25, 75 and 225 mg/kg to maturity...

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来源期刊

Environmental Science: Nano CHEMISTRY, MULTIDISCIPLINARY-ENVIRONMENTAL SCIENCES

CiteScore

12.20

自引率

5.50%

发文量

290

审稿时长

2.1 months

期刊介绍： Environmental Science: Nano serves as a comprehensive and high-impact peer-reviewed source of information on the design and demonstration of engineered nanomaterials for environment-based applications. It also covers the interactions between engineered, natural, and incidental nanomaterials with biological and environmental systems. This scope includes, but is not limited to, the following topic areas: Novel nanomaterial-based applications for water, air, soil, food, and energy sustainability Nanomaterial interactions with biological systems and nanotoxicology Environmental fate, reactivity, and transformations of nanoscale materials Nanoscale processes in the environment Sustainable nanotechnology including rational nanomaterial design, life cycle assessment, risk/benefit analysis