This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1111/j.1469-8137.2005.01374.x in citations.
Nitrogen supply affects arbuscular mycorrhizal colonization of Artemisia vulgaris in a phosphate-polluted field site
Nitrogen supply affects arbuscular mycorrhizal colonization of Artemisia vulgaris in a phosphate-polluted field site
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 plant...
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Personal Name(s): | Blanke, V. |
---|---|
Renker, C. / Wagner, M. / Füllner, K. / Held, M. / Kuhn, A. J. / Buscot, F. | |
Contributing Institute: |
Phytosphäre; ICG-III |
Published in: | The @new phytologist, 166 (2005) S. 981 - 992 |
Imprint: |
Oxford [u.a.]
Wiley-Blackwell
2005
|
Physical Description: |
981 - 992 |
DOI: |
10.1111/j.1469-8137.2005.01374.x |
PubMed ID: |
15869657 |
Document Type: |
Journal Article |
Research Program: |
Chemie und Dynamik der Geo-Biosphäre |
Series Title: |
New Phytologist
166 |
Subject (ZB): | |
Publikationsportal JuSER |
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. |