Accumulation of Biogenic Chemical Microelements in the Bark of Siberian Buckthorn (Hippophae rhamnoides L. ssp. mongolica Rousi)
G. M. Skuridin1, O. V. Chankina2, A. A. Legkodymov3, N. V. Baginskaya1, K. P. Koutsenogii2
1Institute of Cytology and Genetics, Siberian Branch of het Russian Academy of Sciences, Pr. Lavrentyeva 10, Novosibirsk 630090, Russia
2Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Ul. Institutskaya 3, Novosibirsk 630090, Russia
3Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, Pr. Lavrentyeva 11, Novosibirsk 630090, Russia
Keywords: elemental composition, synchrotron radiation, buckthorn bark
Abstract
The elemental composition of the bark of Siberian buckthorn (Hippophae rhamnoides L. ssp. mongolica Rousi ) growing under endemic conditions of West Siberia was studied. The simultaneous quantitative content of K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, Nb, Mo, Pb in bark and in soil was determined by means of XPA–SR (X–ray fluorescence analysis involving the synchrotron radiation), and the coefficients of biological accumulation of these elements were established. Species-specific features of the absorption of elements in the bark of Siberian buckthorn were revealed, which is expressed as increased (in comparison with the earth's phytomas) accumulation of vitally necessary iron, molybdenum and chromium, as well as elements with unestablished biological role: niobium, titanium and zirconium. It was shown that the bark of Siberian buckthorn can serve as a source of vitally necessary chromium in the easily digestible biogenic form. It was established that the bark of Siberian buckthorn does not concentrate toxic chemical elements — lead and arsenic.
|
