Trace Elements in Medicine (Moscow)
2019, 20(1): 35-42
ORIGINAL PAPERS

COMPARATIVE STUDY OF THE MINERAL COMPLEX POLYGONUM PERSICARIA L. AND PERSICARIA TOMENTÓSA (SCHRANK) E.P. BICKNELL)

A.A. Gudkova¹, A.C. Chistyakova¹, A.I. Slivkin¹, A.A. Sorokina²

¹ Voronezh State University, Universitetskaya Ploshchad, 1, 394018, Voronezh, Russia
² I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), ul. Bolshaya Pirogovskaya, House 2, pg. 4, 119991, Moscow, Russia

DOI: 10.19112/2413-6174-2019-20-1-35-42 

ABSTRACT. A comparative analysis was carried out and the content of macro - and microelements in the grass of two closely related species of the Polygonaceae Juss family was determined. As a result of work in two representatives of the genus Persicaria Mill. (Polygonum persicaria L., Persicaria tomentósa (Schrank) E. P. Bicknell) 56 elements were identified. The content of some elements may act as an additional chemotaxonomic sign for species of the genus Persicaria Mill. It has been revealed that Persicaria tomentósa is a promising source of magnesium, calcium and zinc; phosphorus is more abundant in Polygonum persicaria. A correlation is shown between the frequency of occurrence, the size of the druses of calcium oxalate, and the quantitative content of calcium in the plant. Peculiarities of the accumulation of mineral substances by these plants have been established. It is shown that the accumulation of elements among representatives of the genus is not homogeneous. The greatest accumulation was typical for magnesium, phosphorus, potassium, calcium, zinc, strontium, barium, manganese. It was established that the content of toxic elements in all studied species does not exceed the maximum permissible concentration set by in the normative documentation; in addition, the accumulation of certain elements is impeded by a physiological barrier. However, given that the harvesting of plant raw materials is carried out from wild relatives, which does not provide an opportunity to regulate the mineral composition of soils, it is necessary to pay attention to the de-velopment of maximum permissible concentration for microelements that are part of the studied objects. The conducted research shows prospects of using the studied species for creation of phytopreparations for correction of mineral balance.

KEYWORDS: mineral substances, chromate-mass-spectrometry, grass, Polygonum persicaria L., Persicaria tomentósa(Schrank) E.P. Bicknell.