The influence of ions Cu2+ and Pb2+on structure lipids of Elodea сanadensis Michx

The qualitative and quantitative structure of lipids in conditions of accumulation and elimination of heavy metals (ТМ) by fresh-water vascular plant Elodea сanadensis Michx was research. The plants were holded in 100 мM solutions nitrate salts of Cu2+, Pb2+ in the period of 10 days, then maintained in the period of 5 days in the environment which was not contained HМ. Maximal accumulation of HМ has been connected with change of structure of the general, polar, neutral lipids and fatty acids (FA). Copper in the greatest degree oppressed the growth and the lipids exchange that was shown in decrease in the basic components of various classes of the lipids, increase in saturation of FA. Ions of Pb2+ positively influenced a gain of a biomass, increased the maintenance of phospholipids and no saturated FA. The role of lipids in adaptation of water plants to the metals, that were used both during the period of incubation, and during the post stressful period during rehabilitation of plants (the absence of metals) is discussed.