THE ELEMENT CONTENTS IN SOME WILD Russula TAXA FROM FORESTS OF SOUTH-MARMARA (TURKEY)

Abstract

Element contents were analysed in some wild Russula Pers. taxa [R. alutacea, R. aurora, R. brunneoviolacea, R. cyanoxantha, R. velutipes and R. virescens] from South Marmara region of Turkey by ICP-AES equipment. Element uptake levels were observed at different levels in each Russula species. According to the results, the highest Cd, Cu, K, and Mn concentrations were determined as 4.12, 39.9, 39324 and, 296 mg.kg-1 in R. alutacea respectively. R. brunneoviolacea has the highest B, Cr and Ni concentrations as 26.51, 3.66 and 11.22 mg.kg(-1) respectively, whereas R. cyanoxantha has the highest Fe, Mg, Na and S concentrations as 5201, 3871, 769 and 3581 mg.kg(-1) respectively. Although R. virescens has only the highest Mo as 0.78 mg. kg(-1), on the other hand, R. velutipes has the highest Ca, P and Zn concentrations as 2082, 4557 and 83.2 mg.kg(-1) respectively. The differences among the concentrations of elements in Russula species are statistically significant (p<0.05), while the differences among the concentration of Cd was not only statistically significant (p>0.05). In order to demonstrate possible spatial variations in element composition of Russula species multivariate analysis [both the cluster (CA) and principal components analysis (PCA)] were done. According to total element concentrations, R. alutacea, R. virescens and R. velutipes make one group while R. aurora, R. brunneoviolacea and R. cyanoxantha are in the other group.