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Titel (primär) Arbuscular mycorrhizas in phosphate-polluted soil: interrelations between root colonization and nitrogen
Autor Blanke, V.; Wagner, M.; Renker, C.; Lippert, H.; Michulitz, M.; Kuhn, A.J.; Buscot, F.;
Journal / Serie Plant and Soil
Erscheinungsjahr 2011
Department BOOEK;
Band/Volume 343
Heft 1-2
Sprache englisch;
Supplements https://static-content.springer.com/esm/art%3A10.1007%2Fs11104-011-0727-9/MediaObjects/11104_2011_727_MOESM1_ESM.pdf
https://static-content.springer.com/esm/art%3A10.1007%2Fs11104-011-0727-9/MediaObjects/11104_2011_727_MOESM2_ESM.pdf
Keywords Arbuscular mycorrhiza; Benomyl; Element concentrations; Nitrogen fertilization; Phosphate pollution; Root colonization
Abstract To 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.
ID 10893
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=10893
Blanke, V., Wagner, M., Renker, C., Lippert, H., Michulitz, M., Kuhn, A.J., Buscot, F. (2011):
Arbuscular mycorrhizas in phosphate-polluted soil: interrelations between root colonization and nitrogen
Plant Soil 343 (1-2), 379 - 392