Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems

The content of thorium (Th) and uranium (U) in fractions of soil edaphosphere, rhizosphere, rhizoplane, fungal mycelium and fruit bodies were investigated. The concentrations of thorium in edaphosphere and rhizosphere fractions and mycelia of fungi are not different significantly and vary in the ran...

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Main Author: M. M. Vinichuk
Format: Article
Language:English
Published: Oles Honchar Dnipropetrovsk National University 2012-07-01
Series:Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ
Online Access:http://ecology.dp.ua/index.php/ECO/article/view/35
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author M. M. Vinichuk
author_facet M. M. Vinichuk
author_sort M. M. Vinichuk
collection DOAJ
description The content of thorium (Th) and uranium (U) in fractions of soil edaphosphere, rhizosphere, rhizoplane, fungal mycelium and fruit bodies were investigated. The concentrations of thorium in edaphosphere and rhizosphere fractions and mycelia of fungi are not different significantly and vary in the range of 0.74–1.45 mg kg–1 dry matter. The concentration of thorium in the rhizoplane fraction is 4 times lower than in the bulk soil – edaphosphere. The concentrations of uranium in edaphosphere, rhizosphere and rhizoplane fractions and fungi mycelium are not significantly different and vary between 3.11 and 9.36 mg kg–1 dry matter. The content of the studied natural isotopes in fruit bodies of fungi is 270 times lower than in the bulk soil: biological absorption coefficients of uranium and thorium in fruit bodies are on average 0.035 and 0.006, respectively. The contents of thorium and uranium in fungal mycelium and fruit bodies increase with increasing their concentrations in the soil. It is shown that in the fungi mycelium of the upper (0–5 cm) layer of forest soil can be allocated 2.0–5.0 and 1.4–2.7 % of the total thorium and uranium soil content, respectively.
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spelling doaj.art-82aa537d139a4b46bc2ff1965bb45d4d2022-12-22T00:13:16ZengOles Honchar Dnipropetrovsk National UniversityVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ2310-08422312-301X2012-07-01202101710.15421/01122235Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystemsM. M. VinichukThe content of thorium (Th) and uranium (U) in fractions of soil edaphosphere, rhizosphere, rhizoplane, fungal mycelium and fruit bodies were investigated. The concentrations of thorium in edaphosphere and rhizosphere fractions and mycelia of fungi are not different significantly and vary in the range of 0.74–1.45 mg kg–1 dry matter. The concentration of thorium in the rhizoplane fraction is 4 times lower than in the bulk soil – edaphosphere. The concentrations of uranium in edaphosphere, rhizosphere and rhizoplane fractions and fungi mycelium are not significantly different and vary between 3.11 and 9.36 mg kg–1 dry matter. The content of the studied natural isotopes in fruit bodies of fungi is 270 times lower than in the bulk soil: biological absorption coefficients of uranium and thorium in fruit bodies are on average 0.035 and 0.006, respectively. The contents of thorium and uranium in fungal mycelium and fruit bodies increase with increasing their concentrations in the soil. It is shown that in the fungi mycelium of the upper (0–5 cm) layer of forest soil can be allocated 2.0–5.0 and 1.4–2.7 % of the total thorium and uranium soil content, respectively.http://ecology.dp.ua/index.php/ECO/article/view/35
spellingShingle M. M. Vinichuk
Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ
title Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
title_full Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
title_fullStr Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
title_full_unstemmed Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
title_short Thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
title_sort thorium and uranium in soil fractions and certain macromycete species in boreal forest ecosystems
url http://ecology.dp.ua/index.php/ECO/article/view/35
work_keys_str_mv AT mmvinichuk thoriumanduraniuminsoilfractionsandcertainmacromycetespeciesinborealforestecosystems