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@ARTICLE{Liebich:55830,
author = {Liebich, J. and Schloter, M. and Schäffer, A. and
Vereecken, H. and Burauel, P.},
title = {{D}egradation and humification of maize straw in soil
microcosms inoculated with simple and complex microbial
communities},
journal = {European journal of soil science},
volume = {58},
issn = {1351-0754},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {PreJuSER-55830},
pages = {141 - 151},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {Microbial communities are responsible for soil organic
matter cycling and thus for maintaining soil fertility. A
typical Orthic Luvisol was freed from organic carbon by
thermal destruction at 600°C. Then the degradation and
humification of 14C-labelled maize straw by defined
microbial communities was analysed. To study the role of
microbial diversity on the humification of plant material,
microcosms containing sterilized soil were inoculated with a
natural microbial community or with microbial consortia
consisting of bacterial and fungal soil isolates. Within 6
weeks, 41 ± $4\%$ of applied 14C-labelled maize straw was
mineralized in the soil microcosms containing complex
communities derived from a soil suspension, whilst the most
efficient communities composed of soil isolates mineralized
less than $35\%.$ The humification products were analysed by
solution state 13C-NMR-spectroscopy and gel permeation
chromatography (GPC). The analyses of humic acids extracts
by solution state 13C-NMR-spectroscopy revealed no
difference in the development of typical chemical functional
groups for humic substances during incubation. However, the
increase in specific molecular size fractions of the
extracted humic acids occurred only after inoculation with
complex communities, but not with defined isolates. While it
seems to be true that redundancy in soil microbial
communities contributes to the resilience of soils, specific
soil functions may no longer be performed if a microbial
community is harshly affected in its diversity or growth
conditions.},
cin = {ICG-4 / JARA-ENERGY / JARA-SIM},
ddc = {630},
cid = {I:(DE-Juel1)VDB793 / $I:(DE-82)080011_20140620$ /
I:(DE-Juel1)VDB1045},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Soil Science},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000243940900016},
doi = {10.1111/j.1365-2389.2006.00816.x},
url = {https://juser.fz-juelich.de/record/55830},
}