Аккумуляция тяжелых металлов эпилитными лишайниками с различными вторичными метаболитами

Abstract

Accumulation of metals in four crustose lichens with different secondary chemistry growing on serpentinite was studied. Aspicilia cinerea and Aspicilia blastidiata contain depsidone norstictic acid, Aspicilia goettweigensis contains stictic acid, and Aspicilia contorta ssp. hoffmanniana contains aliphatic compound aspicilin. The highest average concentrations in lichens compared to serpentinite were found for Ca, Sr, Cu, Na, Zn and Cr were 3–11 times greater in lichens compared to rocks and other elements such as Ni, Fe, Co, Mn, and Mg were equal or lower in the thalli compared to the substrate. Three species showed little differences in concentrations of the same metals but Aspicilia blastidiata which is obligate to serpentinite had statistically higher levels of most elements.