Record details

Title
    On the possible role of macrofungi in the biogeochemical fate of ofuranium in polluted forest soils
Author
    Borovička, Jan
    Dunn, C.E.
    Gryndler, M.
    Kotrba, P.
    Krausová, B.
    Kubrová, J.
    Rohovec, Jan
    Řanda, Z.
    Žigová, Anna
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Journal of Hazardous Materials
Vol./nr.
    Roč. 280, September
Pages
    s. 79-88
Year
    2014
Notes
    Rozsah: 10 s. : P
Subject category
    bioaccumulation
    ectomycorrhizae
    fungi
    lead
    silver
    soil
    thorium
    uranium
Keyword
    Biogeochemical
    Fate
    Forest
    Macrofungi
    Ofuranium
    Polluted
    Possible
    Role
    Soils
Abstract (in english)
   Interactions of macrofungi with U, Th, Pb and Ag were investigated in the former ore mining district of Příbram, Czech Republic. Samples of saprotrophic (34 samples, 24 species) and ectomycorrhizal (38 samples, 26 species) macrofungi were collected from a U-polluted Norway spruce plantation and tailings and analyzed for metal content. In contrast to Ag, which was highly accumulated in fruit-bodies, concentrations of U generally did not exceed 3. mg/kg which indicates a very low uptake rate and efficient exclusion of U from macrofungi. In ectomycorrhizal tips (mostly determined to species level by DNA sequencing), U contents were practically identical with those of the non-mycorrhizal fine spruce roots. These findings suggest a very limited role of macrofungi in uptake and biotransformation of U in polluted forest soils.
   Furthermore, accumulation of U, Th, Pb and Ag in macrofungal fruit-bodies apparently does not depend on total content and chemical fractionation of these metals in soils (tested by the BCR sequential extraction in this study).
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    23. 10. 2014