Physiological effects of zero-valent iron nanoparticles in rhizosphere on edible crop, Medicago sativa (Alfalfa), grown in soil.

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ID: 20630
2019
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Abstract
We investigated the effects of nanoscale zero-valent iron (nZVI) that has been widely used for groundwater remediation on a terrestrial crop, Medicago sativa (Alfalfa), and comprehensively addressed its development and growth in soil culture. Root lengths, chlorophyll, carbohydrate and lignin contents were compared, and no physiological phytotoxicity was observed in the plants. In the roots, using an omics-based analytical, we found evidence of OH radical-induced cell wall loosening from exposure to nZVI, resulting in increased root lengths that were approximately 1.5 times greater than those of the control. Moreover, germination index (GI) was employed to physiologically evaluate the impact of nZVI on germination and root length. In regard to chlorophyll concentration, nZVI-treated alfalfa exhibited a higher value in 20-day-old seedlings, whereas the carbohydrate and lignin contents were slightly decreased in nZVI-treated alfalfa. Additionally, evidence for translocation of nZVI into plant tissues was also found. Vibrating sample magnetometry on shoots revealed the translocation of nZVI from the root to shoot. In this study, using an edible crop as a representative model, the potential impact of reactive engineered nanomaterials that can be exposed to the ecosystem on plant is discussed.
Reference Key
kim2019physiologicalecotoxicology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kim, Jae-Hwan;Kim, Daniel;Seo, Sung Man;Kim, Daeyoung;
Journal ecotoxicology (london, england)
Year 2019
DOI
10.1007/s10646-019-02083-5
URL
Keywords Keywords not found

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