INSTITUTE OF RADIATION PROBLEMS
AZERBAIJAN NATIONAL ACADEMY OF SCIENCES
DEPARTMENT OF PHYSICAL, MATHEMATICAL AND TECHNICAL SCIENCES
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Structure

Laboratory of “Radiobiology”

Tel: (+994 12) 5102681
Fax: (+994 12) 5398318
E-mail: e_dzhafarov@rambler.ru

Elimkhan Suleyman Jafarov

Head of the structural unit:
Elimkhan Suleyman Jafarov
Doctor of Biology

Main area of activity of the structural unit: Study the effect of low-dose radiation on the plants growing in local radionuclide-contaminated areas.

Main scientific achievements of the structural unit: Both qualitative and quantitative compositions of the radionuclides contaminating the territory of Romana iodine plant selected as an experimental ground have been determined and their distribution both along different soil profiles and on a horizontal plane has been studied. Afterwards the effect of ionizing radiation of the radionuclides on the biomorphological and reproductive characteristics of the growing wild herbaceous plants in the local-pollution area. At the next stage the migration properties of the natural radionuclides such as K-40, U-238, Th-232, and Ra-226 have been studied along the link "soil-plant (camel's-thorn Alhgi pseudaalhgi, bean caper zygophyllum L., turnera Turnera and rush Junucus acutus L)" and it has been determined that migration properties of radionuclides depend on both the species of plants and the types of radionuclides, as different plants differ for the ability of accumulating radionuclides.
The photosynthesis process in the plants exposed to chronic radiation effect has been studied on the base of a comparative analysis of green pigments and carotenoids. It has been determined that the effect of low-dose radiation on photosynthesis process has an individual character for different plants and there is no law in synthesis of photosynthetic pigments. It has been established that stimulating effect of low-dose radiation differs at different growth stages of plants.
At the present time in order to explain the effect of low-dose radiation on the photosyntheis process progressing in the leaves of camel's-thorn etc. growing in the experimental ground the study of ionizing radiation effect on the synthesis of both anthocyanins and flavonoids and the activity of superoxide dismutase, peroxidase and catalase which are the main enzymes of the antioxidant protection system of plants and chlorophyll having an important role in photosynthesis process has been started. On the base of the primary results it has been established that there occur some differences in the qualitative and quantitative compositions of anthocyanins and flavonoids in experimental plants in comparison with control samples and some changes in the activities of catalase and peroxidase enzymes under radiation effect.