2D FTIR correlation spectroscopy and EPR analysis of Urtica dioica leaves from areas of different environmental pollution
| Autor: | Paulina Moskal, Magdalena Kurdziel, Maria Filek, Maria Łabanowska, Aleksandra Wesełucha-Birczyńska |
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| Rok vydání: | 2018 |
| Předmět: |
Metal ions in aqueous solution
Analytical chemistry Environmental pollution 010402 general chemistry 01 natural sciences Analytical Chemistry law.invention chemistry.chemical_compound law Spectroscopy Fourier Transform Infrared Lignin Fourier transform infrared spectroscopy Electron paramagnetic resonance Urtica dioica Instrumentation Spectroscopy 010405 organic chemistry Electron Spin Resonance Spectroscopy Atomic and Molecular Physics and Optics 0104 chemical sciences Plant Leaves Freeze Drying chemistry Chlorophyll Environmental chemistry Environmental Pollution Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 189:405-414 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2017.08.044 |
| Popis: | Leaves of Urtica dioica collected from two areas of different environmental pollution were analysed by fourier transform infrared spectroscopy (FTIR) and electron paramagnetic resonance (EPR) spectroscopy. Analysis of FTIR spectra allows to describe main component of plant like proteins, lipids and carbohydrates. Although the FTIR spectra of plants from these two geographical locations of different environmental pollution appear to be relatively similar, 2D correlation shows completely different patterns. Synchronous and asynchronous correlation maps showed sequences of changes occurring during development of plant, manly in Amide I and Amide II, lignin, lipids and cellulose. In addition, 2D analysis revealed another sequence of changes as the function of plant growth depending on the degree of the environmental pollution. Two various kinds of paramagnetic species, transition metal ions (Mn(II), Fe(III)) and stable organic radicals (chlorophyll, semiquinone, tyrosyl and carbon centered) were found in leaves of nettle collected at different stages of development and growing in clean and polluted environment. In plants growing in polluted area the injuries of protein molecules bonding metal ions and the disturbances of photosynthesis and redox equilibrium in cells, as well as instability of polysaccharide structure of cell walls were observed. |
| Databáze: | OpenAIRE |
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