Uptake of metallic nanoparticles containing essential (Cu, Zn and Fe) and non-essential (Ag, Ce and Ti) elements by crops: A meta-analysis

IF 11.4 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Critical Reviews in Environmental Science and Technology Pub Date : 2022-12-14 DOI:10.1080/10643389.2022.2156225

Yunsheng Jia, E. Klumpp, R. Bol, W. Amelung

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引用次数: 4

Abstract

Abstract The specific properties of nanoparticles can induce toxic or promoting effects on plant growth. We performed a meta-analysis of 173 studies to evaluate the uptake and accumulation of metallic nanoparticles (MNPs) by crops. Studies on the main cereal/vegetable crops (wheat, tomato, bean, maize, rice and cucumber) and Ag, Zn, Ce, Fe, Cu and Ti containing MNPs were mostly found; 63% of the studies used MNPs with size <30 nm, and root application accounted for 84% of all studies. Under root exposure, metal concentrations were reduced by up to 2 orders of magnitude from root through shoot to leaf. Moreover, the uptake preference of MNPs or dissolved metals was element-specific and varied among tissues. Plants accumulated generally higher concentrations of the three essential elements (Cu, Zn and Fe) than of the non-essential ones (Ag, Ce and Ti). Also, foliar application was more efficient than root exposure. Metal concentrations in shoots increased with decreasing particle size for non-essential elements, but showed a variable increase for essential elements as size decreased. Besides, the uptake of MNPs increased with more negative zeta potential (especially for Cu and Zn). Overall, the plant essential elements (Cu, Zn and Fe) were preferred taken up as MNPs, while for non-essential elements (Ag and Ce) uptake as dissolved metals was more common. We conclude that for plant nanofertilizers, foliar application of essential elements as small MNPs might be more efficient for crop uptake than the uptake of dissolved metals. Highlights Uptake of essential elements was significantly higher than that of non-essential elements. Metal accumulations increased with smaller particle size and more negative zeta potential. Non-essential elements (Ag and Ce) are acquired preferably as dissolved metals. Essential elements (Cu, Zn and Fe) are preferably taken up as nanoparticles. Graphical Abstract

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作物对含有必需元素（Cu、Zn和Fe）和非必需元素（Ag、Ce和Ti）的金属纳米颗粒的吸收：一项荟萃分析

摘要纳米颗粒的特殊性质可对植物生长产生毒性或促进作用。我们对173项研究进行了荟萃分析，以评估作物对金属纳米颗粒（MNPs）的吸收和积累。对主要谷类/蔬菜作物（小麦、番茄、豆类、玉米、水稻和黄瓜）和含Ag、Zn、Ce、Fe、Cu和Ti的MNPs的研究最多；63%的研究使用了尺寸<30的MNP nm和根应用占所有研究的84%。在根暴露下，从根到地上部到叶片，金属浓度降低了高达2个数量级。此外，MNPs或溶解金属的摄取偏好是元素特异性的，并且在不同组织中有所不同。植物积累的三种必需元素（Cu、Zn和Fe）的浓度通常高于非必需元素（Ag、Ce和Ti）。此外，叶面施用比根系暴露更有效。芽中的金属浓度随着非必需元素粒径的减小而增加，但随着粒径的减少，必需元素的金属浓度呈现出可变的增加。此外，MNPs的吸收随着负ζ电位的增加而增加（尤其是对Cu和Zn）。总的来说，植物必需元素（Cu、Zn和Fe）优选作为MNP吸收，而非必需元素（Ag和Ce）作为溶解金属吸收更常见。我们得出的结论是，对于植物纳米肥料，叶面施用作为小MNP的必需元素可能比吸收溶解金属更有效地促进作物吸收。亮点必需元素的摄取量显著高于非必需元素。金属积累随着颗粒尺寸的减小和负ζ电位的增加而增加。非必需元素（Ag和Ce）优选作为溶解金属获得。基本元素（Cu、Zn和Fe）优选作为纳米颗粒被吸收。图形摘要

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来源期刊

Critical Reviews in Environmental Science and Technology 环境科学-环境科学

CiteScore

27.30

自引率

1.60%

发文量

审稿时长

2 months

期刊介绍： Two of the most pressing global challenges of our era involve understanding and addressing the multitude of environmental problems we face. In order to tackle them effectively, it is essential to devise logical strategies and methods for their control. Critical Reviews in Environmental Science and Technology serves as a valuable international platform for the comprehensive assessment of current knowledge across a wide range of environmental science topics. Environmental science is a field that encompasses the intricate and fluid interactions between various scientific disciplines. These include earth and agricultural sciences, chemistry, biology, medicine, and engineering. Furthermore, new disciplines such as environmental toxicology and risk assessment have emerged in response to the increasing complexity of environmental challenges. The purpose of Critical Reviews in Environmental Science and Technology is to provide a space for critical analysis and evaluation of existing knowledge in environmental science. By doing so, it encourages the advancement of our understanding and the development of effective solutions. This journal plays a crucial role in fostering international cooperation and collaboration in addressing the pressing environmental issues of our time.