EPR STUDY OF ACCUMULATION AND TOXIC EFFECT OF IRON AND COPPER DURING THE DEVELOPMENT OF Solanum tuberosum L. in vitro

Author:

Khutsishvili S. S.1,Perfileva A. I.2,Nozhkina O. A.2,Dyrkach A. Yu.3

Affiliation:

1. N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences

2. Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences

3. Irkutsk State Medical University

Abstract

The migration and accumulation of iron and copper ions in the process of growing Solanum tuberosum L vial potatoes have been studied. The form and content of the metals in the tissues of potatoes grown under factorostatic conditions have been determined by elemental analysis and electron paramagnetic resonance (EPR) method. The toxic effect of the studied heavy metals has been expressed in terms of physical-chemical characteristics (change in the EPR signals and metal accumulation in plant organs) and biometric parameters with an increase in the content of metal salts in the nutrient medium. In addition, the EPR spectra showed a narrow singlet typical for stable semiquinone radicals.

Publisher

National Academy of Sciences of Belarus

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