Comparative Study of Element Composition of Species of the Genus Dasiphora (Rosaceae) in the Primorsky Region and Republic of Buryatia

Abstract

Element composition was determined in the aboveground organs (leaves and stems) of plants of four species of the genus Dasiphora : D. fruticosa , D. parvifolia , D. mandshurica , D. gorovoii grown in the Primorsky Territory and Republic of Buryatia. The results were compared with two taxa ( D. davurica and the variety D. davurica var. flava ) which had been studied earlier. Content of 21 elements in the aboveground organs and samples of soil from sites of the plant collection was analysed by the method of X-ray fluorescence analysis using synchrotron radiation (SRXRF). For the first time, composition and content of the elements were determined for a new taxon D. gorovoii . The highest total content of the macroelements (K, Ca) was found in the aboveground organs of the two taxa: D. davurica and D. davurica var. flava ; the highest content of the microelements was determined in the aboveground organs of D. gorovoii , D. mandshurica , and D. fruticosa . We found that each species had a characteristic concentration of elements.