College of Plant Protection, Southwest University, Chongqing 400715, China.
Int J Mol Sci. 2023 Jun 2;24(11):9673. doi: 10.3390/ijms24119673.
The overuse of copper-based fertilizers and pesticides over the last few decades has resulted in detrimental risks to our environment. Nano-enabled agrichemicals with a high effective utilization ratio have shown great potential for maintaining or minimizing environmental issues in agriculture. Copper-based nanomaterials (Cu-based NMs) serve as a promising alternative to fungicides. Three types of Cu-based NMs with different morphologies were analyzed for their different antifungal effects on in this current study. Compared to commercial copper hydroxide water power (Cu(OH) WP), all tested Cu-based NMs, including cuprous oxide nanoparticles (CuO NPs), copper nanorods (Cu NRs) and copper nanowires (Cu NWs), especially CuO NPs and Cu NWs, showed higher antifungal activity against . Its EC were 104.24 and 89.40 mg L, respectively, achieving comparable activity using a dose approximately 1.6 and 1.9-fold lower. Cu-based NMs could introduce the downregulation of melanin production and soluble protein content. In contrast to trends in antifungal activity, CuO NPs showed the strongest power in regulating melanin production and protein content and similarly exhibited the highest acute toxicity to adult zebrafish compared to other Cu-based NMs. These results demonstrate that Cu-based NMs could offer great potential in plant disease management strategies.
在过去几十年中，铜基肥料和农药的过度使用对我们的环境造成了有害的风险。具有高有效利用率的纳米农业化学品在农业中维持或最小化环境问题方面显示出巨大的潜力。铜基纳米材料（Cu 基 NM）是杀菌剂的一种有前途的替代品。在本研究中，分析了三种不同形态的 Cu 基 NM，以研究它们对 的不同抗真菌作用。与商业氢氧化铜水动力（Cu(OH)WP）相比，所有测试的 Cu 基 NM，包括氧化亚铜纳米颗粒（CuO NPs）、铜纳米棒（Cu NRs）和铜纳米线（Cu NWs），尤其是 CuO NPs 和 Cu NWs，对 显示出更高的抗真菌活性。其 EC 分别为 104.24 和 89.40mg/L，使用剂量分别约为 1.6 和 1.9 倍。Cu 基 NM 可引起黑色素产生和可溶性蛋白质含量的下调。与抗真菌活性的趋势相反，CuO NPs 显示出最强的黑色素产生和蛋白质含量调节能力，与其他 Cu 基 NM 相比，对成年斑马鱼表现出最强的急性毒性。这些结果表明，Cu 基 NM 在植物病害管理策略中具有巨大的潜力。
