Electromagnetic radiation of low intensity as a factor of change in the biosynthesis of phenolic compounds

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Sviatlana Shysh Zhanna Mazets Hanna Shutava Olga Sysha Yulia Gorgun

Abstract

The influence features of low-intensity electromagnetic radiation (EMR) on the biosynthesis of the phenolic compounds (PC) in plants at different stages of ontogeny are described in the article. A medicinal plant (Calendula officinalis L. 'Machroviy 2000', Belarus) and agricultural crop Fagopyrum sagittatum G. diploid varieties (Kypava and Phenix) and tetraploid varieties (Alexandrina, Anastasia, Martha, Belarus) were chosen as objects for the study. It was established that the influence of EMP on the PC accumulation in juvenile marigold seedlings under controlled conditions has a pronounced dependence from the exposure of EMP. Thus, it was found that activation of the antioxidant properties of PC has been occurred to the 14th day as a result of the influence of EMP. Treatment by R1.2 led to an increase in 2 times in the level of PC in juvenile shoots with respect to control. Different constitutional level of the phenolic compounds in the leaves of diploid and tetraploid varieties of Fagopyrym sagittatum Gilib in the most critical phases of ontogenesis of plant development such as the initial stages (7th day) and the period of plants mass flowering (69th day) was established during the research. Species - and variety-specific changes in the content of secondary metabolites under the influence of EMR allow to choose the exposure time for the regulation of growth processes of cereals and medicinal crops for the purpose of using them in the industrial cultivation of these plants.

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Sending to International Journal of Secondary Metabolite