Record ID No. |
582 |
Author(s) |
Wallander, H., Johansson, L., Pallon, J , 2002 |
Affiliation |
Lund University Department of Microbial Ecology, Ecology Building, S-22362 Lund, Sweden |
Title |
Analysis to estimate the elemental composition of ectomycorrhizal rhizomorphs grown in contact with different minerals in forest soil |
Source. Vol.(no):Page |
FEMS Microbiology Ecology, 39(2): 147-156p. |
Categories |
Ectomycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Nutrition |
Host |
Pinus muricata |
Organism |
Rhizopogon sp. |
Country |
Sweden, Europe |
Abstracts |
The aim of this study was to investigate possible interactions between minerals and ectomycorrhizal (EM) mycelia. Fungal rhizomorphs growing in association with apatite and/or biotite were sampled both from a laboratory experimental system (Rhizopogon sp. and Pinus muricata) and from mesh bags buried in forest soil in the field. The elemental composition of the samples was analyzed with particle-induced X-ray emission (PIXE). Many EM rhizomorphs associated with apatite in laboratory systems and in mesh bags contained larger amounts of Ca (mean ranges between 12 and 31 mg Ca g-1) than similar rhizomorphs connected to acid-washed sand (range 0.3-3.5 mg Ca g-1). Ca originating from apatite was deposited as calcium oxalate crystals ON the surface of the rhizomorphs. EM mycelium produced in mesh bags had a capacity to mobilize 0.6 mg P kg-1 year-1 from apatite-amended sand (which is 0.04% of the added apatite). A high concentration of K in some rhizomorphs (up to 11 mg K g-1) suggests that these fungi are good accumulators of K and may have a significant role in transporting K to trees. |