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Seed coating with fungicides is a common practice in controlling seed-borne diseases, but conventional methods often result in high toxicity to plants and soil. In this study, a nanoparticle formulation was successfully developed using the metal-organic framework UiO-66 as a carrier of the fungicide ipconazole (IPC), with a tannic acid (TA)-ZnII coating serving as a protective layer. The IPC@UiO-66-TA-ZnII nanoparticles provided a controlled release, triggered and regulated by environmental factors such as pH and temperature. This formulation efficiently controlled the proliferation of Fusarium fujikuroi spores, with high penetration into both rice roots and fungal mycelia. The product exhibited high antifungal activity, achieving control efficacy rates of 84.09% to 93.10%, low biotoxicity, and promoted rice growth. Compared to the IPC flowable suspension formula, IPC@UiO-66-TA-ZnII improved the physicochemical properties and enzymatic activities in soil. Importantly, it showed potential for mitigating damage to beneficial soil bacteria. This study provides a promising approach for managing plant diseases using nanoscale fungicides in seed treatment. IPC-loaded UiO-66 with tannic acid-ZnII shells for precision management of rice seedling disease through intelligent, responsive release.A pH- and temperature-sensitive, controlled-release nanoparticle system was developed.Tannic acid-ZnII-modified nanoparticles penetrate into rice roots and fungal mycelium.Nanoparticles provide better control of Fusarium fujikuroi and promote seedling growth.Nanoparticles reduce the pollution of soil environment by conventional seed coatings.

来源平台：JOURNAL OF NANOBIOTECHNOLOGY