Abstract Nanoparticles (NPs) have a critical function in mitigating the disease of fruits and vegetables. In the present investigation, the effects of three levels of concentrations (0.05, 0.10, and 0.20 mg/mL) of titanium dioxide NPs (TiO2-NPs) and silicon dioxide NPs (SiO2-NPs) were investigated against fungus Phomopsis vexans, bacterium Ralstonia solanacearum, and Meloidogyne incognita (root-knot nematode). The present investigation’s findings found that the application of SiO2-NPs was more efficient against test pathogens in comparison to TiO2-NPs. The best result produced by SiO2-NPs against pathogenic strain was used in the molecular docking investigation with the protein of R. solanacearum to better understand the interaction of active amino acids with SiO2-NPs. The obtained results revealed that the administration of 0.20 mg/mL foliar spray of SiO2-NPs in plants with M. incognita improves up to 37.92% of shoot dry weight and increases 70.42% of chlorophyll content. P. vexans growth was suppressed by 41.2% with 0.62 mm of inhibition zone when SiO2-NPs were given at a dosage of 0.20 mg/mL. The reductions in egg hatching and M. incognita (J2) mortality were greater in SiO2-NPs than in TiO2-NPs. The results of scanning electron microscopy confirmed that the application of both NPs harmed test pathogens. The confocal study also showed the penetration of NPs among test pathogens.

中文翻译：

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阐明二氧化硅和二氧化钛纳米粒子在减轻由 Phomopsis vexans、Ralstonia solanacearum 和根结线虫 Meloidogyne incognita 引起的茄子疾病中的作用

摘要 纳米颗粒（NPs）在减轻水果和蔬菜病害方面具有关键作用。在本研究中，研究了三个浓度水平（0.05、0.10 和 0.20 mg/mL）的二氧化钛纳米粒子 (TiO2-NPs) 和二氧化硅纳米粒子 (SiO2-NPs) 对真菌 Phomopsis vexans、细菌 Ralstonia 的影响solanacearum 和 Meloidogyne incognita（根结线虫）。本调查的结果发现，与 TiO2-NPs 相比，SiO2-NPs 对测试病原体的应用更有效。SiO2-NPs 对致病菌株产生的最佳结果用于与青枯菌蛋白质的分子对接研究，以更好地了解活性氨基酸与 SiO2-NPs 的相互作用。所得结果表明，施用 0。叶面喷施 20 mg/mL SiO2-NPs 在 M. incognita 植物中可提高高达 37.92% 的枝条干重并增加 70.42% 的叶绿素含量。当以 0.20 mg/mL 的剂量给予 SiO2-NPs 时，P. vexans 的生长被抑制了 41.2%，抑制区为 0.62 mm。SiO2-NPs 的卵孵化率和 M. incognita (J2) 死亡率的降低要大于 TiO2-NPs。扫描电子显微镜的结果证实，两种 NPs 的应用都对测试病原体造成了伤害。共聚焦研究还显示了 NP 在测试病原体中的渗透。SiO2-NPs 的卵孵化率和 M. incognita (J2) 死亡率的降低要大于 TiO2-NPs。扫描电子显微镜的结果证实，两种 NPs 的应用都对测试病原体造成了伤害。共聚焦研究还显示了 NP 在测试病原体中的渗透。SiO2-NPs 的卵孵化率和 M. incognita (J2) 死亡率的降低要大于 TiO2-NPs。扫描电子显微镜的结果证实，两种 NPs 的应用都对测试病原体造成了伤害。共聚焦研究还显示了 NP 在测试病原体中的渗透。