Divergent effects of cerium oxide nanoparticles alone and in combination with cadmium on nutrient acquisition and the growth of maize (Zea mays)

• DOI: 10.3389/fpls.2023.1151786
• Publication Date: 2023-03-30T06:49:24Z
• Authors: Muhammad Ashar Ayub; Muhammad Zia ur R...; Hamaad Raza Ahmad; Cyren M. Rico; Ghulam Hassan Abbasi; Wajid Umar; Alan L. Wright; Muhammad Nadeem; John-Paul Fox; Lorenzo Rossi
• Keywords: Dry weight; Phytotoxicity; Cerium oxide

The increasing use of cerium nanoparticles (CeO2-NPs) has made their influx in agroecosystems imminent through air and soil deposition or untreated wastewater irrigation. Another major pollutant associated with anthropogenic activities is Cd, which adverse effects on plants, animals, humans. source the Cd Ce metals human food chain contaminated food, making it an alarming issue; thus, there a need to understand factors that can reduce potential damage these heavy metals.The present investigation was conducted evaluate effect CeO2-10-nm-NPs (alone combination) Zea mays growth. A pot experiment (in sand) check 0, 200, 400, 600, 1,000, 2,000 mg CeO2-10 nm-NPs/kg-1 dry sand alone combination 0 0.5 Cd/kg-1 maize seedlings grown partially controlled greenhouse environment, total 12 treatments applied four replicates under factorial design. Maize seedling biomass, shoot root growth, nutrient content, anatomy were measured.The NPs toxic plant biomass (shoot weight), growth at ppm most Cd-0 sets. For Cd-0.5 sets, 1,000 somewhat reverted toxicity compared control (CC). Additionally, CeO2-NPs affected translocation, variable uptake observed presence non-Cd Furthermore, elemental content roots shoots (micronutrients such as B, Mn, Ni, Cu, Zn, Mo, Fe elements Co Si) anatomy.