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Título: | Multifunctional nanomaterials for biofortification and protection of tomato plants |
Autor: | Parra-Torrejón, Belén; Cáceres, Andrés; Sánchez, Manu; Sainz, Luis; Guzmán, Miguel; Bermúdez-Perez, Francisco J.; Ramírez-Rodríguez, Gloria B.; Delgado-López, José M. | Palabras clave: | Agriculture Antibacterial Biofortification Calcium phosphate Zinc Tomato Nanofertilizer Nanoparticles |
Fecha de publicación: | 2023 | Editor: | American Chemical Society | Citación: | Environmental Science and Technology 57(40): 14950-14960 (2023) | Resumen: | Calcium phosphate nanoparticles were doped with zinc ions to produce multifunctional nanomaterials for efficient agronomic fortification and protection of plants. The resulting round-shaped nanoparticles (nanoZn) were composed of 20.3 wt % Ca, 14.8 wt % P, and 13.4 wt % Zn and showed a pH-controlled solubility. NanoZn were stable in aqueous solutions at neutral pH but dissolved in citric acid at pH 4.5 (i.e., the pH inside tomato fruits), producing a pH-responsive delivery of the essential nutrients Ca, P, and Zn. In fact, the foliar application of nanoZn on tomato plants provided tomatoes with the highest Zn, Ca, and P contents (causing, respectively, a 65, 65, and 15% increase with respect to a conventional treatment with ZnSO4) and the highest yields. Additionally, nanoZn (100 ppm of Zn) inhibited in vitro the growth of Pseudomonas syringae (Ps), the main cause of bacterial speck, and significantly reduced Ps incidence and mortality in tomato seeds, previously inoculated with the pathogen. Therefore, nanoZn present dual agricultural applicability, enriching crops with nutrients with important metabolic functions in humans and simultaneously protecting the plants against important bacterial-based diseases, with considerable negative impact in crop production. | Versión del editor: | https://doi.org/10.1021/acs.est.3c02559 | URI: | http://hdl.handle.net/10261/344074 | DOI: | 10.1021/acs.est.3c02559 | E-ISSN: | 1520-5851 |
Aparece en las colecciones: | (INMA) Artículos |
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multifunctionaplants.pdf | 7,61 MB | Adobe PDF | Visualizar/Abrir |
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