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@ARTICLE{Medina:201076,
author = {Medina, Almudena and Jakobsen, Iver and Egsgaard, Helge},
title = {{S}ugar beet waste and its component ferulic acid inhibits
external mycelium of arbuscular mycorrhizal fungus},
journal = {Soil biology $\&$ biochemistry},
volume = {43},
number = {7},
issn = {0038-0717},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2015-03386},
pages = {1456 - 1463},
year = {2011},
abstract = {External arbuscular mycorrhiza (AM) mycelium plays an
important role in soil while interacting with a range of
biotic and abiotic factors. One example is the soil organic
amendment sugar beet waste. The fermented Aspergillus
niger–sugar beet waste (ASB) increases growth and P uptake
by the AM mycelium in soil whereas non-fermented waste (SB)
had a strong inhibitory effect. The underlying mechanisms
are not understood.We used gas chromatography–mass
spectrometry to identify differences in composition of water
extracts of ASB and SB. The chromatograms showed that
ferulic acid was present in SB and absent in ASB. We
compared the effects of the water extracts of SB and ASB and
ferulic acid upon the growth of Glomus intraradices in in
vitro monoxenic cultures.Hyphal growth of the AM fungus G.
intraradices was extremely reduced in ferulic acid and SB
treatments. Moreover, AM hyphae appeared disorganized,
undulated and tangled. In contrast, ASB increased hyphal
length and numbers of branched absorbing structures and of
spores. We conclude that ferulic acid is one compound in SB
which is responsible for its inhibition of AM extraradical
growth. The relevance of these findings is discussed.},
cin = {IBG-2},
ddc = {570},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {89582 - Plant Science (POF2-89582)},
pid = {G:(DE-HGF)POF2-89582},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000291576800009},
doi = {10.1016/j.soilbio.2011.03.016},
url = {https://juser.fz-juelich.de/record/201076},
}