Fe₂O₃ magnetic nanoparticles to enhance S. lycopersicum (tomato) plant growth and their biomineralization

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• 作者：K. Shankramma ; S. Yallappa ; M. B. Shivanna ; J. Manjanna
• 关键词：Solanum lycopersicum ; Magnetic Fe2O3 nanoparticles ; Nanoparticle uptake ; Plant growth
• 刊名：Applied Nanoscience
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：6
• 期：7
• 页码：983-990
• 全文大小：2,167 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science
  Nanotechnology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：2190-5517
• 卷排序：6

文摘

In the present study, we demonstrate magnetic iron (III) oxide nanoparticles (Fe₂O₃ NPs) uptake by the Solanum lycopersicum (S. lycopersicum) plant. The S. lycopersicum seeds were coated with Fe₂O₃ NPs and allowed to germinate in moistened sand bed. The seedlings are observed for 20 days, and then, it was post-treated using different amounts of Fe₂O₃ NPs in hydroponic solution for 10 days. The plant was allowed to grow in green house for 3 months, and uptake of NPs through roots and translocation into different parts was studied. For this, we have segmented the plants and incubated with 10 % NaOH solution. It is found that the NPs are deposited preferentially in root hairs, root tips followed by nodal and middle zone of plant. The iron present in the whole plant was quantitatively estimated by treating dry biomass of the plant in acid. The Fe2+/Fe_total increased with increasing concentration of NPs and >45 % ferrous iron suggests the biomineralization of NPs due to rich phytochemicals in plants. We believe that the present study is useful to build a base line data for novel applications in agri-nanotechnology.