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Updated: Aug 31, 2026

High Precision Zinc Isotopic Measurements Applied to Mouse Organs
Published on: May 22, 2015
Variations in elemental and isotopic compositions of Cu, Zn, and Cd in mushrooms: are they site- or
Alexandre V Andronikov1, Irina E Andronikova1, Eva Martinkova1
1Division of Geochemistry and Laboratories, Czech Geological Survey, Geologicka 6, Prague, 15200, Czech Republic.
Abstract:
We studied the elemental and isotopic systematics of Cu, Zn, and Cd in Imleria badia mushroom and the related soil samples from six sites underlain by granite, amphibolite, and peridotite bedrock. The soils contain varying amounts of Cu, Zn, and Cd and exhibit a wide range of δ65Cu (-0.85 to +0.67‰), δ66Zn (-0.06 to +0.25‰), and δ114Cd (-0.73 to -0.37‰) values. Mushrooms show site-dependent concentrations only in the case of Cd. Isotopes of Cd, Cu, and Zn fractionate to different degrees during both uptake from the substrate and within-mushroom translocation. Mushrooms display higher uptake of isotopically heavier Zn (Δ66ZnFB-soil = 0.33 to 1.03‰) and Cd (Δ114CdFB-soil = 0.17 to 0.47‰), and predominantly isotopically heavier Cu (Δ65CuFB-soil = -0.08 to 1.47‰). The degrees of within-mushroom isotopic fractionation are insignificant: Δ65Cu had a total range of values of 0.38‰; Δ66Zn, of 0.53‰; and Δ114Cd, of 0.15‰ for the mushroom samples. Individual samples show the extent of within-mushroom isotopic fractionation (ΔxE) from -0.29 to 0.13‰ for different elements. The study suggests that some elemental and isotopic differences in the analyzed mushrooms are more species-dependent than site-dependent.
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