Atwa Atwa A, Ahmed Shreen S, El-Aziz Gehan H Abd, Abou-Zeid Mohamed A, Omara Reda I, Atwa Nourhan A, Fahmy Ashraf H
Plant Protection Research Institute, Agriculture Research Center, Giza, 12619, Egypt.
Soils, Water and Environment Research Institute, ARC, Giza, 12619, Egypt.
Sci Rep. 2025 Mar 19;15(1):9429. doi: 10.1038/s41598-025-91127-4.
Wheat production is jeopardized by Puccinia triticina, the pathogen responsible for wheat leaf rust. This study assessed the impact of silver (Ag) and copper (Cu) nanoparticles (NPs) on the control of wheat leaf rust disease and the underlying mechanisms of disease resistance. The application of the two nanoparticles resulted in a reduction of spore germination and an extension of both incubation and latent periods. A common type of infection resulted in a reduction in both the length and width of pustules. It reduced receptivity value (number of pustule cm) compared to untreated wheat plants by altering the physiological and biochemical responses of wheat plants and cell walls' physical and mechanical strength. The application of Ag + Cu NPs stimulates the biosynthesis of defense-related molecules crucial for P. triticina inoculation and latent periods. Furthermore, molecular docking studies were conducted to assess the effects of Cu-chitosan nanoparticles (Ag & CuNp) and their mechanisms in disease management.
小麦生产受到小麦叶锈病菌（Puccinia triticina）的威胁，这种病原菌会引发小麦叶锈病。本研究评估了银（Ag）和铜（Cu）纳米颗粒（NPs）对控制小麦叶锈病的影响以及抗病的潜在机制。这两种纳米颗粒的应用导致孢子萌发减少，潜育期和潜伏期延长。常见的感染类型使病斑的长度和宽度均减小。与未处理的小麦植株相比，它通过改变小麦植株的生理生化反应以及细胞壁的物理和机械强度，降低了感病值（每平方厘米病斑数）。Ag + Cu NPs的应用刺激了对小麦叶锈病菌接种和潜伏期至关重要的防御相关分子的生物合成。此外，还进行了分子对接研究，以评估铜 - 壳聚糖纳米颗粒（Ag & CuNp）的作用及其在病害管理中的机制。
