Al-Huqail Arwa Abdulkreem, Alghanem Suliman Mohammed Suliman, Abbas Zahid Khorshid, Al Aboud Nora M, Masood Nasir, Irshad Muhammad Atif, Abbas Tahir, Abeed Amany H A, Darwish Doaa Bahaa Eldin
Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
Biology Department, College of Science, Qassim University, Burydah, 52571, Saudi Arabia.
Chemosphere. 2023 Nov;341:140115. doi: 10.1016/j.chemosphere.2023.140115. Epub 2023 Sep 7.
In recent times, significant attention has been directed toward the synthesis and application of nanoparticles (NPs) in agriculture sector. In current study, nanoceria (CeO NPs) synthesized by green method were employed to address cadmium (Cd) accumulation in wheat (Triticum aestivum L.) cultivated in field with excess Cd. The application of CeO NPs was carried out through foliar spraying, performed twice during the growth of T. aestivum. Four levels of CeO NPs were used: T0, T1, T2, and T3 as 0, 50, 75, and 100 mgL, respectively. Results highlighted the positive effects of CeO NPs on various growth parameters, including plant height, spike length, photosynthetic related attributes, as well as straw and grain of grains in comparison to T1 (control group). Furthermore, CeO NPs led to a reduction in oxidative stress in the leaves and enhanced in enzyme activities in comparison to T1. Notably, Cd concentrations in straw, roots, and grains exhibited a decline following the treatment with CeO NPs, in contrast to the control group. In terms of health implications, the calculated health risk index associated with dietary consumption of grains by adults remained below the defined threshold with supply of nanoparticles. Foliar application of CeO NPs proved to be an effective approach in reducing cadmium content in wheat grains. This reduction holds significant potential for minimizing the risk of cadmium exposure to human health through the food chain. Employing the green synthesis method amplifies the potential for extensive production and a wide array of environmental applications for CeO NPs. This dual capacity makes them proficient in tackling environmental stresses while concurrently mitigating adverse ecological effects.
近年来，纳米颗粒（NPs）在农业领域的合成与应用受到了广泛关注。在本研究中，采用绿色方法合成的纳米氧化铈（CeO NPs）来解决在镉（Cd）过量的田间种植的小麦（Triticum aestivum L.）中镉的积累问题。CeO NPs通过叶面喷施的方式施用，在普通小麦生长期间进行了两次喷施。使用了四个水平的CeO NPs：T0、T1、T2和T3，分别为0、50、75和100 mg/L。结果表明，与T1（对照组）相比，CeO NPs对各种生长参数具有积极影响，包括株高、穗长、光合相关属性以及秸秆和籽粒产量。此外，与T1相比，CeO NPs使叶片中的氧化应激降低，酶活性增强。值得注意的是，与对照组相比，用CeO NPs处理后，秸秆、根和籽粒中的镉浓度有所下降。就健康影响而言，成年人通过食用谷物计算出的健康风险指数在供应纳米颗粒的情况下仍低于规定阈值。叶面喷施CeO NPs被证明是降低小麦籽粒中镉含量的有效方法。这种降低对于通过食物链将镉暴露对人类健康的风险降至最低具有重要潜力。采用绿色合成方法扩大了CeO NPs大规模生产和广泛环境应用的潜力。这种双重能力使它们能够有效应对环境压力，同时减轻不利的生态影响。
