Pu(IV) and Fe(III) accumulation ability of heavy metal-tolerant soil fungi

• Autorzy: Levinskaite L. , Smirnov A. , Lukšiene B. , Druteikiene R. , Remeikis V. , Baltrunas D.
• Języki publikacji: EN

Abstrakty

EN

The work was aimed at studying abilities of soil microorganisms to participate in metal/radionuclide mobility processes by accumulating them. Soil microorganisms were treated with a mixture of heavy metals (Cr(III), Ni, Fe(III), Mn(II), Cd) in order to isolate the most tolerant ones. Among more metal-tolerant microorganisms microscopic fungi dominated. Tests of fungal tolerance towards each metal showed that the most tolerant fungi to almost all metals were Aspergillus niger, Penicillium oxalicum and Paecilomyces lilacinus. Accumulation ability of metal-tolerant fungi was tested using Pu(IV) and Fe(III). Investigation of Pu accumulation by fungal biomass showed that all the fungi accumulated Pu, and among the most effective radionuclide accumulators Eupenicillium sp., Penicillium oxalicum and Aspergillus niger could be mentioned. All the fungi showed high Fe-accumulation capacity. While growing in the medium with 1 mM iron, most fungi accumulated over 90% of Fe in their biomass. Very good accumulation and growth abilities in Fe-supplemented medium were demonstrated by Paecilomyces lilacinus.

Słowa kluczowe

EN

fungi; Pu(IV) electrodeposition; heavy metals; metal tolerance

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2009
• Tom: Vol. 54, No. 4
• Strony: 285--290
• Opis fizyczny: Bibliogr. 43 poz., rys.

Twórcy

autor

Levinskaite L.

autor

Smirnov A.

autor

Lukšiene B.

autor

Druteikiene R.

autor

Remeikis V.

autor

Baltrunas D.

• Laboratory of Biodeterioration Research, Institute of Botany, 49 Žaliuju ežeru Str., LT-08406, Vilnius, Lithuania, Tel.: [phone], Fax: [phone],

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