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@ARTICLE{Niedree:111954,
author = {Niedree, B. and Vereecken, H. and Burauel, P.},
title = {{E}ffects of low-level radioactive soil contamination and
sterilization on the degradation of radiolabeled wheat
straw},
journal = {Journal of environmental radioactivity},
volume = {109},
issn = {0265-931x},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-111954},
pages = {29 - 35},
year = {2012},
note = {This 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.},
abstract = {After 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.},
keywords = {Base Sequence / DNA Primers / DNA, Ribosomal: analysis /
Electrophoresis, Polyacrylamide Gel / RNA, Ribosomal, 16S:
analysis / RNA, Ribosomal, 18S: analysis / Soil Pollutants,
Radioactive: analysis / Triticum: chemistry / Triticum:
genetics / DNA Primers (NLM Chemicals) / DNA, Ribosomal (NLM
Chemicals) / RNA, Ribosomal, 16S (NLM Chemicals) / RNA,
Ribosomal, 18S (NLM Chemicals) / Soil Pollutants,
Radioactive (NLM Chemicals) / J (WoSType)},
cin = {IBG-3},
ddc = {690},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Environmental Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22248931},
UT = {WOS:000304640500004},
doi = {10.1016/j.jenvrad.2011.12.018},
url = {https://juser.fz-juelich.de/record/111954},
}