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Title
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Relatively Low Dosages of CeO2 Nanoparticles in the Solid Medium Induce Adjustments in the Secondary Metabolism and Ionomic Balance of Bean (Phaseolus vulgaris L.) Roots and Leaves
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Type
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JournalPaper
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Keywords
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plant metabolomics, secondary metabolism, cerium dioxide nanoparticles, phenolic compounds, plant stress
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Abstract
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ABSTRACT: Nanoparticles (NPs) are known to significantly alter plant metabolism in a dose-dependent manner, with effects ranging from stimulation to toxicity. The metabolic adjustment and ionomic balance of bean (Phaseolus vulgaris L.) roots and leaves gained from plants grown in a solid medium added with relatively low dosages (0, 25, 50, and 100 mg/L) of CeO2 NPs were investigated. Ce accumulated in the roots (up to 287.91 mg/kg dry weight) and translocated to the aerial parts (up to 2.78% at the highest CeO2 dosage), and ionomic analysis showed that CeO2 NPs interfered with potassium, molybdenum, and zinc. Unsupervised hierarchical clustering analysis from metabolomic profiles suggested a dose-dependent and tissue-specific metabolic reprogramming induced by NPs. The majority of differential metabolites belonged to flavonoids and other phenolics, nitrogen-containing low molecules (such as alkaloids and glucosinolates), lipids, and amino acids.
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Researchers
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Luigi Glielmo (Not In First Six Researchers), Tanja Mimmo (Fifth Researcher), Your Pii (Fourth Researcher), Abdolkarim Chehregani Rad (Third Researcher), Begona Miras-Moreno (Second Researcher), Hajar Salehi (First Researcher)
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