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The aims of our experiment were to evaluate the uptake and translocation of cerium and titanium oxide nanoparticles and to verify their effects on the growth cycle of barley (Hordeum vulgare L.). Barley plants were grown to physiological maturity in soil enriched with either 0, 500 or 1000 mg· kg− 1 cerium oxide nanoparticles (n CeO 2) or titanium oxide nanoparticles (n TiO 2) and their combination. The growth cycle of n CeO 2 and n TiO 2 treated plants was about 10 days longer than the controls. In n CeO 2 treated plants the number of tillers, leaf area and the number of spikes per plant were reduced respectively by 35.5%, 28.3% and 30%(p≤ 0.05). n TiO 2 stimulated plant growth and compensated for the adverse effects of n CeO 2. Concentrations of Ce and Ti in aboveground plant fractions were minute. The fate of nanomaterials within the plant tissues was different. Crystalline n TiO 2 aggregates were detected within the leaf tissues of barley, whereas n CeO 2 was not present in the form of nanoclusters. View Full-Text
Multidisciplinary Digital Publishing Institute
Publication date: 
1 Mar 2016

Luca Marchiol, Alessandro Mattiello, Filip Pošćić, Guido Fellet, Costanza Zavalloni, Elvio Carlino, Rita Musetti

Biblio References: 
Volume: 13 Issue: 3 Pages: 332
International Journal of Environmental Research and Public Health