Web of Science (Emerging Sources Citation Index), ISC

Document Type : Original Research Article


1 Institute of Radiation Problems, Azerbaijan National Academy of Sciences, Baku, Azerbaijan

2 Russian Institute for Advanced Study, Moscow State Pedagogical University, 1/1, Malaya Pirogovskaya St, Moscow, Russian Federation, 119991

3 Department of Biophysics and Biochemistry, Baku State University, Baku, Azerbaijan

4 Department of Biochemistry, Azerbaijan Medical University, Baku, Azerbaijan

5 Department of Biophysics, Moscow State University, Moscow, Russia

6 Maragheh University of Medical Sciences, Maragheh, Iran


< p>The article is devoted to the study of the leaves of the fig (Ficus carica L.) tree is one of the most valuable trees of the Absheron Peninsula (Azerbaijan). Research on fig leaves growing in Mardakan and Nardaran areas of Absheron has been carried out on EPR spectrometer. Studies have shown that stressors cause the formation of nanophase particles of biogenic origin in living systems. These nanoparticles lead to the formation of magnetic properties in biological systems and the formation of the broad EPR signal that we first discovered in plants. It was found that the magnetic properties depend on the type of plant and the environmental conditions in which they live and the characteristics of EPR signals characterizing magnetic nanoparticles (amplitude, signal width, g factor, etc.) are strongly dependent on temperature and that this signal has magnetic anisotropy. Studies of fig leaves have shown that as a result of biomineralization under stress, they form magnetic nanoparticles of iron oxide. In addition, the high intensity of the broad EPR signal characteristic of nanophase magnetic particles detected in fig leaves growing in Mardakan area (Azerbaijan) indicates that the plant system in this area is more exposed to pollutants and the area is more environmentally polluted than Nardaran Area (Azerbaijan). The characteristic verve phase transition occurs at a temperature of 120-125 K in the behavior of parameters such as the amplitude of the magnetic resonance signal and the width of the magnetic resonance line. The results were confirmed by the messabauer method.

Graphical Abstract

Identification of the EPR signals of fig leaves (Ficus carica L.)


Main Subjects

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