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000111954 0247_ $$2pmid$$apmid:22248931
000111954 0247_ $$2DOI$$a10.1016/j.jenvrad.2011.12.018
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000111954 041__ $$aeng
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000111954 084__ $$2WoS$$aEnvironmental Sciences
000111954 1001_ $$0P:(DE-Juel1)VDB109867$$aNiedree, B.$$b0$$uFZJ
000111954 245__ $$aEffects of low-level radioactive soil contamination and sterilization on the degradation of radiolabeled wheat straw
000111954 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2012
000111954 300__ $$a29 - 35
000111954 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000111954 440_0 $$017582$$aJournal of Environmental Radioactivity$$v109$$x0265-931x
000111954 500__ $$3POF3_Assignment on 2016-02-29
000111954 500__ $$aThis work was funded by the German Federal Ministry of Education and Research (BMBF) under contract number 02NUK002E, KVSF. We would like to thank Eberhard Kuemmerle for calculating the dose rates. Furthermore, we would like to thank Sascha Sokolowsky for preparing the DGGE gels, Sirgit Kummer and Werner Mittelstaedt for their help in the laboratory, Wolfgang Tappe and Nicolai Jablonowski for fruitful discussions and Janet Carter-Sigglow and Hazel Burlet for linguistic revision.
000111954 520__ $$aAfter the explosion of reactor 4 in the nuclear power plant near Chernobyl, huge agricultural areas became contaminated with radionuclides. In this study, we want to elucidate whether (137)Cs and (90)Sr affect microorganisms and their community structure and functions in agricultural soil. For this purpose, the mineralization of radiolabeled wheat straw was examined in lab-scale microcosms. Native soils and autoclaved and reinoculated soils were incubated for 70 days at 20 °C. After incubation, the microbial community structure was compared via 16S and 18S rDNA denaturing gradient gel electrophoresis (DGGE). The radioactive contamination with (137)Cs and (90)Sr was found to have little effect on community structure and no effect on the straw mineralization. The autoclaving and reinoculation of soil had a strong influence on the mineralization and the community structure. Additionally we analyzed the effect of soil treatment on mineralization and community composition. It can be concluded that other environmental factors (such as changing content of dissolved organic carbon) are much stronger regulating factors in the mineralization of wheat straw and that low-level radiation only plays a minor role.
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000111954 65320 $$2Author$$aMineralization
000111954 65320 $$2Author$$aWheat straw
000111954 65320 $$2Author$$aCs-137
000111954 65320 $$2Author$$aSr-90
000111954 65320 $$2Author$$aC-14
000111954 65320 $$2Author$$aChernobyl
000111954 650_2 $$2MeSH$$aBase Sequence
000111954 650_2 $$2MeSH$$aDNA Primers
000111954 650_2 $$2MeSH$$aDNA, Ribosomal: analysis
000111954 650_2 $$2MeSH$$aElectrophoresis, Polyacrylamide Gel
000111954 650_2 $$2MeSH$$aRNA, Ribosomal, 16S: analysis
000111954 650_2 $$2MeSH$$aRNA, Ribosomal, 18S: analysis
000111954 650_2 $$2MeSH$$aSoil Pollutants, Radioactive: analysis
000111954 650_2 $$2MeSH$$aTriticum: chemistry
000111954 650_2 $$2MeSH$$aTriticum: genetics
000111954 650_7 $$00$$2NLM Chemicals$$aDNA Primers
000111954 650_7 $$00$$2NLM Chemicals$$aDNA, Ribosomal
000111954 650_7 $$00$$2NLM Chemicals$$aRNA, Ribosomal, 16S
000111954 650_7 $$00$$2NLM Chemicals$$aRNA, Ribosomal, 18S
000111954 650_7 $$00$$2NLM Chemicals$$aSoil Pollutants, Radioactive
000111954 650_7 $$2WoSType$$aJ
000111954 7001_ $$0P:(DE-Juel1)129549$$aVereecken, H.$$b1$$uFZJ
000111954 7001_ $$0P:(DE-Juel1)VDB202$$aBurauel, P.$$b2$$uFZJ
000111954 773__ $$0PERI:(DE-600)1483112-0$$a10.1016/j.jenvrad.2011.12.018$$gVol. 109, p. 29 - 35$$p29 - 35$$q109<29 - 35$$tJournal of environmental radioactivity$$v109$$x0265-931x$$y2012
000111954 8567_ $$uhttp://dx.doi.org/10.1016/j.jenvrad.2011.12.018
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