The Concentration of Nitrogen in Nitrophilous and Non-Nitrophilous Lichen Species

摘要: The purpose of this work was to compare nitrogen concentrations in Xanthoria parietina, a nitrophilous lichen species, with non-nitrophilous species (Ramalina fastigiata, Parmelia caperata and Evernia prunastri). In order understand the differences between total concentrations, organic inorganic fractions, deposited on thallus surface cation exchange capacity were determined. X. parietina presented always higher than other studied when collected at same sites. spatial variation concentration reflects amount nitrogen, particularly ammonium. No detected both R. fastigiata. scarce probably hampered by level from whole thallus. proportion relation seems reflect sources. lowest found for can be contribution understanding tolerance mechanisms species. Moreover, E. prunastri, an acidophilous highest all