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The role of phosphorus, magnesium and potassium availability in soil fungal exploration of mineral nutrient sources in Norway spruce forests
Lund University.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. (Ctr Ecol & Evolut Microbial Model Syst EEMiS)
Hasselt University, Belgium.
Czech Geological Survey, Czech Republic.
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2016 (English)In: New Phytologist, ISSN 0028-646X, E-ISSN 1469-8137, Vol. 211, no 2, 542-553 p.Article in journal (Refereed) Published
Abstract [en]

We investigated fungal growth and community composition in buried meshbags, amended with apatite, biotite or hornblende, in Norway spruce (Picea abies) forests of varying nutrient status. Norway spruce needles and soil collected from forests overlying serpentinite had low levels of potassium and phosphorus, those from granite had low levels of magnesium, whereas those from amphibolite had comparably high levels of these nutrients. We assayed the fungal colonization of meshbags by measuring ergosterol content and fungal community with 454 sequencing of the internal transcribed spacer region. In addition, we measured fine root density. Fungal biomass was increased by apatite amendment across all plots and particularly on the K-and P-deficient serpentinite plots, whereas hornblende and biotite had no effect on fungal biomass on any plots. Fungal community (total fungal and ectomycorrhizal) composition was affected strongly by sampling location and soil depth, whereas mineral amendments had no effect on community composition. Fine root biomass was significantly correlated with fungal biomass. Ectomycorrhizal communities may respond to increased host-tree phosphorus demand by increased colonization of phosphorus-containing minerals, but this does not appear to translate to a shift in ectomycorrhizal community composition. This growth response to nutrient demand does not appear to exist for potassium or magnesium limitation.

Place, publisher, year, edition, pages
2016. Vol. 211, no 2, 542-553 p.
Keyword [en]
ectomycorrhizal fungi (EMF), ergosterol, fungal community composition, hyphae, minerals, Norway spruce (Picea abies), soil nutrients
National Category
Ecology
Research subject
Natural Science, Ecology
Identifiers
URN: urn:nbn:se:lnu:diva-55776DOI: 10.1111/nph.13928ISI: 000379213200017PubMedID: 26996085Scopus ID: 2-s2.0-84976515032OAI: oai:DiVA.org:lnu-55776DiVA: diva2:955858
Available from: 2016-08-26 Created: 2016-08-26 Last updated: 2016-09-08Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
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  • nn-NO
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  • Other locale
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Output format
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