Zinc Oxide Nanoparticles Boosts Phenolic Compounds and Antioxidant Activity of Capsicum annuum L. during Germination

García López, Josué Israel y Zavala García, Francisco y Olivares Sáenz, Emilio y Lira Saldívar, Ricardo y Díaz Barriga Castro, Enrique y Ruiz Torres, Norma y Ramos Cortez, Edith y Vázquez Alvarado, Rigoberto y Niño Medina, Guillermo (2018) Zinc Oxide Nanoparticles Boosts Phenolic Compounds and Antioxidant Activity of Capsicum annuum L. during Germination. Agronomy, 8 (10). pp. 1-13. ISSN 2073-4395

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Abstract: TheeffectsofzincoxidenanoparticlesonseedgerminationandseedlinggrowthofCapsicum annuum L. were determined in this research. Total phenols content, total flavonoids, and condensed tannins, as well as 2,2-diphenyl-1-picrylhydrazyl (DPPH) antioxidant capacity was determined. Resultsindicatedthattreatmentwithzincoxidenanoparticles(ZnO-NPs)improvedseedgermination rate during the first seven days. The seed vigor germination increased 123.50%, 129.40% and 94.17% by treatment with ZnO-NPs suspensions at 100, 200 and 500 ppm, respectively. The morphological parameterstestedrevealedthatZnO-NPstreatmentsdidnotsignificantlyaffectplumuledevelopment, buttheyhadasignificantimpact(p≤0.01)onradiclelength. Suspensionsat100,200and500ppmof ZnO-NPs inhibited seedling radicle growth and promoted accumulation of phenolic compounds, with a phytotoxic effect in this organ. Results suggested that zinc oxide nanoparticles influence seed vigor and seedling development and promoted the accumulation of desirable phenolic compounds in the radicle.

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