Estimation of carbon dots amelioration of copper toxicity in maize studied by synchrotron radiation-FTIR.

Autor: Dučić T; CELLS-ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Valles, Barcelona, Spain. Electronic address: tducic@cells.es., Milenković I; Institute for Multidisciplinary Research, Univ. Belgrade, Kneza Višeslava 1, 11000, Belgrade, Serbia., Mutavdžić D; Institute for Multidisciplinary Research, Univ. Belgrade, Kneza Višeslava 1, 11000, Belgrade, Serbia., Nikolić M; Institute for Multidisciplinary Research, Univ. Belgrade, Kneza Višeslava 1, 11000, Belgrade, Serbia., de Yuso MVM; X-Ray Photoelectron Spectroscopy Lab, Central Service (SCAI), University of Málaga, 29071, Málaga, Spain., Vučinić Ž; Institute for Multidisciplinary Research, Univ. Belgrade, Kneza Višeslava 1, 11000, Belgrade, Serbia., Algarra M; Dept. Inorganic Chemistry, Faculty of Science, Univ. Málaga, 29007, Málaga, Spain; CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Portugal. Electronic address: malgarra67@gmail.com., Radotić K; Institute for Multidisciplinary Research, Univ. Belgrade, Kneza Višeslava 1, 11000, Belgrade, Serbia. Electronic address: xenia@imsi.rs.
Jazyk: angličtina
Zdroj: Colloids and surfaces. B, Biointerfaces [Colloids Surf B Biointerfaces] 2021 Aug; Vol. 204, pp. 111828. Date of Electronic Publication: 2021 May 07.
DOI: 10.1016/j.colsurfb.2021.111828
Abstrakt: Carbon dots are biocompatible and non-toxic nanoparticles with chemical affinity to some heavy metals. Human activities increase soil pollution with copper. Cu is an essential microelement in plants, but excess can induce a harmful effects. In plant response to Cu, the cell wall plays an important role. This study aims to estimate possible amelioration effects of folic acid based CDs on Cu toxicity by studying the intracellular and cell wall compounds in maize (Zea mays L.) roots and leaves after 7 day-treatment in hydroponics. The sub-cellular compartmentalization and bio-macromolecular changes induced by 5 μM Cu applied alone or with CDs (167 and 500 mg/L) were studied using the Synchrotron-based Fourier transformmicro-spectroscopy (SR-FTIR) combined with X-Ray photoelectron spectroscopy (XPS). Cu induced changes in content of cell wall polysaccharides, proteins, and lipids. The XPS detected CDs transport throughout the plants. The Cu/167CDs treatment reduced Cu concentration in the roots, possibly by complexation/trapping between the functional groups on CDs surface and Cu 2+ . Principal component analysis of FTIR spectra confirmed that Cu/500CDs treatment increased Cu adverse effects in most tissues but alleviated adverse Cu effects on cell wall polysaccharides in the root xylem, and on polysaccharides and proteins in leaf phloem and mesophyll.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: