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@ARTICLE{Liebich:51890,
author = {Liebich, J. and Vereecken, H. and Burauel, P.},
title = {{M}icrobial community changes during humification of
14{C}-labelled maize straw in heat-treated and native
{O}rthic {L}uvisol},
journal = {European journal of soil science},
volume = {57},
issn = {1351-0754},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {PreJuSER-51890},
pages = {446 - 455},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {The microbial communities in agricultural soils are
responsible for nutrient cycling and thus for maintaining
soil fertility. However, there is still a considerable lack
of knowledge on anthropogenic impacts on soils, their
microflora, and the associated nutrient cycles. In this
microcosm study, microorganisms involved in the conversion
of crop residues were investigated by means of classical
microbiological and molecular methods such as denaturing
gradient gel electrophoresis (DGGE) of PCR (polymerase chain
reaction) amplified 16S rRNA genes. 14C-labelled maize straw
was humified by the naturally occurring microflora in native
and in ashed soils, from which organic carbon was removed by
heating at 600°C. The humic acids synthesized in the
microcosms served as indicators of the humification process
and were analysed by 13C-NMR spectroscopy. Ashed, autoclaved
and native soil exhibited similar microbial and
physicochemical dynamics after inoculation with a soil
suspension. Bacterial counts and DGGE analyses showed that
in the first few weeks a small number of rapidly growing
r-strategists were principally responsible for the
conversion of maize straw. As the incubation continued, the
bacterial diversity increased as well as the fungal biomass.
13C-NMR spectroscopy of 26-week old soil extracts revealed
that structures typical of humic substances also evolved
from the plant material.},
cin = {ICG-IV / JARA-ENERGY},
ddc = {630},
cid = {I:(DE-Juel1)VDB50 / $I:(DE-82)080011_20140620$},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Soil Science},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000238486100003},
doi = {10.1111/j.1365-2389.2006.00815.x},
url = {https://juser.fz-juelich.de/record/51890},
}