TY  - JOUR
AU  - Blanke, V.
AU  - Renker, C.
AU  - Wagner, M.
AU  - Füllner, K.
AU  - Held, M.
AU  - Kuhn, A. J.
AU  - Buscot, F.
TI  - Nitrogen supply affects arbuscular mycorrhizal colonization of Artemisia vulgaris in a phosphate-polluted field site
JO  - The new phytologist
VL  - 166
SN  - 0028-646X
CY  - Oxford [u.a.]
PB  - Wiley-Blackwell
M1  - PreJuSER-46188
SP  - 981 - 992
PY  - 2005
N1  - Record converted from VDB: 12.11.2012
AB  - Root colonization by arbuscular mycorrhizal fungi (AMF) was investigated in industrially polluted grassland characterized by exceptionally high phosphorus levels (up to 120 g kg(-1) soil). Along a pollution-induced nitrogen gradient, soil and tissue element concentrations of Artemisia vulgaris plants and their mycorrhizal status were determined. Additionally, we compared mycorrhization rates and above-ground biomass of A. vulgaris at N-fertilized and control plots in the N-poor area. Despite high soil and tissue P concentrations, plants from N-deficient plots, which were characterized by low tissue N concentrations and N : P ratios, were strongly colonized by AMF, whereas at a plot with comparable P levels, but higher soil and plant N concentrations and N : P ratios, mycorrhization rates were significantly lower. Correlation analyses revealed a negative relationship between percentage root colonization of A. vulgaris by AMF and both tissue N concentration and N : P ratio. Accordingly, in the fertilization experiment, control plants had higher mycorrhization rates than N-fertilized plants, whereas the species attained higher biomass at N-fertilized plots. The results suggest that N deficiency stimulates root colonization by AMF in this extraordinarily P-rich field site.
KW  - Artemisia: metabolism
KW  - Artemisia: microbiology
KW  - Fertilizers
KW  - Mycorrhizae: metabolism
KW  - Nitrogen: metabolism
KW  - Phosphates: analysis
KW  - Plant Roots: microbiology
KW  - Soil: analysis
KW  - Soil Pollutants
KW  - Fertilizers (NLM Chemicals)
KW  - Phosphates (NLM Chemicals)
KW  - Soil (NLM Chemicals)
KW  - Soil Pollutants (NLM Chemicals)
KW  - Nitrogen (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:15869657
UR  - <Go to ISI:>//WOS:000228750700026
DO  - DOI:10.1111/j.1469-8137.2005.01374.x
UR  - https://juser.fz-juelich.de/record/46188
ER  -