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Phosphorus Availability Influences Elemental Uptake in the Mycorrhizal Fungus Glomus intraradices, as Revealed by PIXE Analysis.

Author:
  • Pål Axel Olsson
  • Edith Hammer
  • Håkan Wallander
  • Jan Pallon
Publishing year: 2008
Language: English
Pages: 4144-4148
Publication/Series: Applied and Environmental Microbiology
Volume: 74
Issue: 13
Document type: Journal article
Publisher: American Society for Microbiology

Abstract english

We investigated element accumulation in the arbuscular mycorrhizal fungus Glomus intraradices. Fungal spores and mycelium growing in monoxenic cultures were analyzed. The elemental composition was quantified using particle-induced X-ray emission (PIXE) in combination with scanning transmission ion microscopy. In the spores, Ca and Fe were mainly associated with the spore wall; while P and K showed patchy distributions and their concentrations were correlated. Excess of P in the hyphal growth medium increased the P and Si concentration in spores, and increased the K:Ca ratio in spores. Increased P availability decreased the concentration of Zn and Mn in spores. We conclude that the availability of P influences the uptake and accumulation of several elements in spores. It is demonstrated that PIXE analysis is a powerful tool for quantitative analysis of elemental accumulation in fungal mycelia.

Keywords

  • Ecology
  • Subatomic Physics
  • Biological Sciences

Other

Published
  • Microbial Ecology
  • ISSN: 0099-2240
Edith Hammer
E-mail: edith [dot] hammer [at] biol [dot] lu [dot] se

Associate senior lecturer

MEMEG

+46 46 222 45 36

+46 73 244 19 68

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Research group

Microbial Ecology

Projects

MICCS

PhD students and postdocs

PhD students, main supervisor

Carlos Arellano

Postdocs

Kristin Aleklett