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REMEDIATION OF HEXAVALENT CHROMIUM CONTAMINATED WATER THROUGH ZERO-VALENT IRON NANOPARTICLES AND EFFECTS ON TOMATO PLANT GROWTH PERFORMANCE
Brasili, E., I. Bavasso, V. Petruccelli, G. Vilardi, A. Valletta, C. Dal Bosco, A. Gentili, et al.
Scientific Reports 10:1920(2020)
This study evaluated Cr(VI) removal using zero-valent iron nanoparticles (nZVI) and the impact of Cr(VI), nZVI, and an nZVI/Cr(VI) combined treatment on tomato growth. To evaluate the Cr(VI) toxic effect on germination capability, seeds were exposed to increasing Cr(VI) concentrations up to 1000 mg/L. The inhibition of seed germination and the decrease of hypocotyl and root length began at a Cr(VI) concentration of 5 mg/L. Under treatment with Cr(VI) + nZVI 5 mg/L, seed germination, hypocotyl and root length were significantly higher compared to Cr(VI) 5 mg/L treatment. The impact of only nZVI was investigated on chlorophyll and carotenoid in leaves; iron levels in leaves, roots, fruits and soil; carotenoid, fat-soluble vitamin and nicotianamine in mature fruits. A significant increase of leaf chlorophyll and carotenoids was observed after nZVI 5 mg/L treatment compared to controls. No significant variations were observed in carotenoids, fat-soluble vitamins, and nicotianamine levels after treatment with nZVI 5 mg/L in mature fruits. https://www.nature.com/articles/s41598-020-58639-7.pdf
Scientific Reports 10:1920(2020)
This study evaluated Cr(VI) removal using zero-valent iron nanoparticles (nZVI) and the impact of Cr(VI), nZVI, and an nZVI/Cr(VI) combined treatment on tomato growth. To evaluate the Cr(VI) toxic effect on germination capability, seeds were exposed to increasing Cr(VI) concentrations up to 1000 mg/L. The inhibition of seed germination and the decrease of hypocotyl and root length began at a Cr(VI) concentration of 5 mg/L. Under treatment with Cr(VI) + nZVI 5 mg/L, seed germination, hypocotyl and root length were significantly higher compared to Cr(VI) 5 mg/L treatment. The impact of only nZVI was investigated on chlorophyll and carotenoid in leaves; iron levels in leaves, roots, fruits and soil; carotenoid, fat-soluble vitamin and nicotianamine in mature fruits. A significant increase of leaf chlorophyll and carotenoids was observed after nZVI 5 mg/L treatment compared to controls. No significant variations were observed in carotenoids, fat-soluble vitamins, and nicotianamine levels after treatment with nZVI 5 mg/L in mature fruits. https://www.nature.com/articles/s41598-020-58639-7.pdf
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