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000015610 0247_ $$2DOI$$a10.1007/s11104-011-0727-9
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000015610 084__ $$2WoS$$aAgronomy
000015610 084__ $$2WoS$$aPlant Sciences
000015610 084__ $$2WoS$$aSoil Science
000015610 1001_ $$0P:(DE-HGF)0$$aBlanke, V.$$b0
000015610 245__ $$aArbuscular mycorrhizas in phosphate-polluted soil: interrelations between root colonization and nitrogen
000015610 260__ $$aDordrecht [u.a.]$$bSpringer Science + Business Media B.V$$c2011
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000015610 440_0 $$09161$$aPlant and Soil$$v343$$x0032-079X$$y1
000015610 500__ $$aThis work was supported by a grant from the German Research Foundation (GRK 266). We thank Sandra Schau and Boris Borstler for help in the field, Birgit Schulze for freeze-drying of plant samples at the MPI for Chemical Ecology in Jena, Nadine Merki and Karin Luhring for plant element analyses and Claudia Kruger for root staining. We also thank Christoph Scherber for help with statistical analyses, Karen Budge for improving the English of the manuscript and Stefan Hempel for reviewing the manuscript prior to submission. Further, we thank two anonymous reviewers for helpful comments. Scotts Deutschland GmbH provided the fertilizer for free.
000015610 520__ $$aTo investigate whether arbuscular mycorrhizal fungi (AMF) - abundant in a phosphate-polluted but nitrogen-poor field site - improve plant N nutrition, we carried out a two-factorial experiment, including N fertilization and fungicide treatment. Percentage of root length colonized (% RLC) by AMF and tissue element concentrations were determined for four resident plant species. Furthermore, soil nutrient levels and N effects on aboveground biomass of individual species were measured. Nitrogen fertilization lowered % RLC by AMF of Artemisia vulgaris L., Picris hieracioides L. and Poa compressa L., but not of Bromus japonicus Thunb. This - together with positive N addition effects on N status, N:P-ratio and aboveground biomass of most species - suggested that plants are mycorrhizal because of N deficiency. Fungicide treatment, which reduced % RLC in all species, resulted in lower N concentrations in A. vulgaris and P. hieracioides, a higher N concentration in P. compressa, and did not consistently affect N status of B. japonicus. Evidently, AMF had an influence on the N nutrition of plants in this P-rich soil; however - potentially due to differences in their mycorrhizal responsiveness - not all species seemed to benefit from a mycorrhiza-mediated N uptake and accordingly, N distribution.
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000015610 65320 $$2Author$$aArbuscular mycorrhiza
000015610 65320 $$2Author$$aBenomyl
000015610 65320 $$2Author$$aElement concentrations
000015610 65320 $$2Author$$aNitrogen fertilization
000015610 65320 $$2Author$$aPhosphate pollution
000015610 65320 $$2Author$$aRoot colonization
000015610 650_7 $$2WoSType$$aJ
000015610 7001_ $$0P:(DE-HGF)0$$aWagner, M.$$b1
000015610 7001_ $$0P:(DE-HGF)0$$aRenker, C.$$b2
000015610 7001_ $$0P:(DE-Juel1)133847$$aLippert, H.$$b3$$uFZJ
000015610 7001_ $$0P:(DE-Juel1)VDB17463$$aMichulitz, M.$$b4$$uFZJ
000015610 7001_ $$0P:(DE-Juel1)129349$$aKuhn, A.J.$$b5$$uFZJ
000015610 7001_ $$0P:(DE-HGF)0$$aBuscot, F.$$b6
000015610 773__ $$0PERI:(DE-600)1478535-3$$a10.1007/s11104-011-0727-9$$gVol. 343$$q343$$tPlant and soil$$v343$$x0032-079X$$y2011
000015610 8567_ $$uhttp://dx.doi.org/10.1007/s11104-011-0727-9
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