Repositorio UFRO · Omeka S

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Primer Autor	Benavides-Mendoza, Adalberto
Co-autores	Alberto Garza-Alonso, Carlos Juarez-Maldonado, Antonio Gonzalez-Morales, Susana Cabrera-De la Fuente, Marcelino Cadenas-Pliego, Gregorio Berenice Morales-Diaz, America Trejo-Tellez, Libia Iris Tortella, Gonzalo
Título	ZnO nanoparticles as potential fertilizer and biostimulant for lettuce
Editorial	CELL PRESS
Revista	HELIYON
Lenguaje	en
Resumen	Zn is an indispensable nutrient for crops that usually presents low bioavailability. Different techniques have been proposed to improve the bioavailability of Zn, including the use of nano -fertilizers. The objective of the study was to evaluate the applications of drench (D) and foliar (F) ZnO nanoparticles (NZnO) compared to those of ionic Zn2+ (ZnSO4) in lettuce. The plants cv. Great Lakes 407 was produced in pots of 4 L with perlite-peat moss (1:1) under greenhouse conditions. The treatments consisted of NZnO applications that replaced the total Zn provided with a Steiner solution, as follows: Zn2+ (100%D) (control), Zn2+ (50%D+50%F), NZnO (100% D), NZnO (50%D+50%F), NZnO (75%D), NZnO (50%D), NZnO (75%F) and NZnO (50%F). Four applications of Zn were made with a frequency of 15 days. 75 days after transplant (DAP), the fresh and dry biomass, chlorophyll a, b, and beta-carotene, phenolics, flavonoids, antioxidant ca-pacity, vitamin C, glutathione, H2O2, total protein, and enzymatic activity of PAL, CAT, APX, and GPX were evaluated. The mineral concentrations (N, P, K, Ca, Mg, S, Cu, Fe, Mn, Mo, Zn, Ni, and Si) in the leaves and roots of plants were also determined. The results showed that, compared to Zn2+, NZnO promoted increases in biomass (14-52%), chlorophylls (32-69%), and antioxidant compounds such as phenolics, flavonoids, and vitamin C. The activity of enzymes like CAT and APX, as well as the foliar concentration of Ca, Mg, S, Fe, Mn, Zn, and Si increased with NZnO. A better response was found in the plants for most variables with foliar applications of NZnO equivalent to 50-75% of the total Zn2+ applied conventionally. These results demonstrate that total replacement of Zn2+ with NZnO is possible, promoting fertilizer efficiency and the nutra-ceutical quality of lettuce.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.1016/j.heliyon.2022.e12787
Formato Recurso	PDF
Palabras Claves	Antioxidants Plant nutrition Plant physiology Zinc Protected agriculture Nanofertilizers Nanometal Nanotechnology
Ubicación del archivo	http://dx.doi.org/10.1016/j.heliyon.2022.e12787
Categoría OCDE	Ciencia y tecnología: otros temas
Materias	Antioxidantes Nutrición vegetal Fisiología de las plantas Zinc Agricultura protegida Nanofertilizantes Nanometal Nanotecnología
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Derechos de acceso	acceso abierto
Access Rights	acceso abierto
Id de Web of Science	WOS:000965938000001
Tipo de ruta	verde# dorado
Categoría WOS	Ciencia y tecnología: otros temas