This title appears in the Scientific Report :
2001
Please use the identifier:
http://dx.doi.org/10.1046/j.1469-8137.2001.00014.x in citations.
Interdependence of phosphorus, nitrogen, potassium and magnesium translocation by the ectomycorrhizal fungus Paxillus involutus
Interdependence of phosphorus, nitrogen, potassium and magnesium translocation by the ectomycorrhizal fungus Paxillus involutus
Translocation is shown of phosphorus, nitrogen, potassium and magnesium to a P-deficient host from ectomycorrhizal fungal hyphae.Mycorrhizal (with Paxillus involutus) and nonmycorrhizal P-deficient spruce (P. abies) seedlings were grown in a two-compartment sand-culture system. Hyphal translocation...
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Personal Name(s): | Jentschke, G. |
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Brandes, B. / Kuhn, A. J. / Schröder, W. H. / Gobold, D. L. | |
Contributing Institute: |
Zelluläre Signalverarbeitung; IBI-1 Phytosphäre; ICG-III |
Published in: | The @new phytologist, 149 (2001) S. 327 - 337 |
Imprint: |
Oxford [u.a.]
Wiley-Blackwell
2001
|
Physical Description: |
327 - 337 |
DOI: |
10.1046/j.1469-8137.2001.00014.x |
Document Type: |
Journal Article |
Research Program: |
Nähr- und Schadstoffaustausch zwischen Pflanze-Atmosphäre-Boden Zelluläre Signalverarbeitung |
Series Title: |
New Phytologist
149 |
Subject (ZB): | |
Publikationsportal JuSER |
Translocation is shown of phosphorus, nitrogen, potassium and magnesium to a P-deficient host from ectomycorrhizal fungal hyphae.Mycorrhizal (with Paxillus involutus) and nonmycorrhizal P-deficient spruce (P. abies) seedlings were grown in a two-compartment sand-culture system. Hyphal translocation of nutrients from the inner compartment (penetrated only by hyphae) to the host was measured using mass balance (for N, P and K) or stable isotope (N-15 and Mg-25) methods.Addition of P to the hyphal compartment strongly stimulated hyphal growth, and this also increased both seedling P status and growth. Hyphae translocated nonlimiting elements in addition to P, contributing 52, 17, 5 and 3-4%, respectively, to total P, N, K or Mg plant uptake. The potential role of the ectomycorrhizal mycelium in K acquisition was demonstrated. Translocation to mycorrhizal seedings of N, K and Mg was strongly reduced when hyphal P-fluxes ceased; this translocation of nonlimiting nutrients depended on simultaneous translocation of P.The ectomycorrhizal mycelium has an active role in P acquisition from sources not available to roots. Nutrient fluxes within fungal hyphae are interdependent and strong coupling of N, K and Mg fluxes with long-distance P translocation in the mycorrhizal mycelium occurs. |