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

Hajar Salehi, Maria Begona Miras Moreno, Abdolkarim Chehregani Rad, Youry Pii, Tanja Mimmo, Stefano Cesco, Luigi Lucini

Risultato della ricerca: Contributo in rivistaArticolo in rivista

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.
Lingua originaleEnglish
pagine (da-a)67-76
Numero di pagine10
RivistaJournal of Agricultural and Food Chemistry
Volume68
DOI
Stato di pubblicazionePubblicato - 2020

Keywords

  • Amino Acids
  • Cerium
  • Flavonoids
  • Nanoparticles
  • Phaseolus
  • Phenols
  • Plant Leaves
  • Plant Roots
  • Secondary Metabolism
  • cerium dioxide nanoparticles
  • phenolic compounds
  • plant metabolomics
  • plant stress
  • secondary metabolism

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