Cerium Oxide Nanoparticles Impact Yield and Modify Nutritional Parameters in Wheat (Triticum aestivum L.)

The implicaitons of engineered nanomaterials on crop productivity and food quality are not yet well understood. the impact of cerium oxide nanoparticles (nCeO(2)) on growth and yield attributes and nutritional composition in wheat (Triticum aestivum L.) was examined Wheat was cultivated to grian production in soil amended with 0, 125, 250, and 500 mg of nCeO(2)/kg (control, nCeO(2)-L, nCeO(2)-M and nCeO(2)-H, respectively). At harvest, grians and tissues were analyzed for mineral, fatty acid, and amino acid content. Results showed that, relative to the control, nCeO(2)-H improved plant growth shoot biomass, and grian yield by 9.0%, 12.7% and 36.6%, respectively. Ce accumulation in rots increased at increased nCeO(2) concentration but did not change across treatments in leaves, hull, and grains, indicating a lack of Ce transport to the above-ground tissues. nCeO(2) modified S and Mn storage in grains. nCeO(2)-L modified the amino acid composition and increased linolenicracid by up to 6.17% but decreased linoleic acid by up to 1.63%, compared to the other treatments. The findings suggest the potential of nanoceria to modify crop physiology and food quality with unknown consequences for living organisms.