Details
| Original language | English |
|---|---|
| Pages (from-to) | 442-450 |
| Number of pages | 9 |
| Journal | Geomicrobiology journal |
| Volume | 26 |
| Issue number | 7 |
| Publication status | Published - Oct 2009 |
Abstract
Soil fungi can facilitate calcification. Mushroom Morchella sp. mycelium induced the formation of carbonate concretions on the surface of an organic-based growing media amended with sand and ground limestone. According to SEM observation and X-ray-tomographic microscopy a dense mycelial network induced calcification. The CaCO3 content of concretions (Ø: 0.3-1.5 cm) was found to be at 30%. Microsparitic calcite cemented the pores between the sand grains forming a dense clogging microstructure. Besides water uptake by the mycelium, a high evaporation rate and a decrease in pCO2 contributed to the formation of the concretions. Fungal mycelium in the concretions is surrounded by voids indicating that at the surface of the mycelium, calcification is counteracted most probably by the release of organic acids.
Keywords
- Calcification, Growing media, Microstructure, Morchella, SEM, X-ray-tomographic microscopy
ASJC Scopus subject areas
- Immunology and Microbiology(all)
- Microbiology
- Environmental Science(all)
- Environmental Chemistry
- Environmental Science(all)
- General Environmental Science
- Earth and Planetary Sciences(all)
- Earth and Planetary Sciences (miscellaneous)
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In: Geomicrobiology journal, Vol. 26, No. 7, 10.2009, p. 442-450.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Role of fungal mycelium in the formation of carbonate concretions in growing media-an investigation by SEM and synchrotron-based X-ray tomographic microscopy
AU - Masaphy, S.
AU - Zabari, L.
AU - Pastrana, J.
AU - Dultz, S.
N1 - Funding information: X-ray-tomographic microscopy was performed at the TOMCAT beamline at the synchrotron light source of the Paul Scherrer Institute, Villigen, Switzerland. Skillful help by Federica Marone and Marco Stampanoni is gratefully acknowledged. This work was supported by the European Commission under contract no.: RII3-CT-2004-506008. We thank two anonymous reviewers for helpful comments.
PY - 2009/10
Y1 - 2009/10
N2 - Soil fungi can facilitate calcification. Mushroom Morchella sp. mycelium induced the formation of carbonate concretions on the surface of an organic-based growing media amended with sand and ground limestone. According to SEM observation and X-ray-tomographic microscopy a dense mycelial network induced calcification. The CaCO3 content of concretions (Ø: 0.3-1.5 cm) was found to be at 30%. Microsparitic calcite cemented the pores between the sand grains forming a dense clogging microstructure. Besides water uptake by the mycelium, a high evaporation rate and a decrease in pCO2 contributed to the formation of the concretions. Fungal mycelium in the concretions is surrounded by voids indicating that at the surface of the mycelium, calcification is counteracted most probably by the release of organic acids.
AB - Soil fungi can facilitate calcification. Mushroom Morchella sp. mycelium induced the formation of carbonate concretions on the surface of an organic-based growing media amended with sand and ground limestone. According to SEM observation and X-ray-tomographic microscopy a dense mycelial network induced calcification. The CaCO3 content of concretions (Ø: 0.3-1.5 cm) was found to be at 30%. Microsparitic calcite cemented the pores between the sand grains forming a dense clogging microstructure. Besides water uptake by the mycelium, a high evaporation rate and a decrease in pCO2 contributed to the formation of the concretions. Fungal mycelium in the concretions is surrounded by voids indicating that at the surface of the mycelium, calcification is counteracted most probably by the release of organic acids.
KW - Calcification
KW - Growing media
KW - Microstructure
KW - Morchella
KW - SEM
KW - X-ray-tomographic microscopy
UR - http://www.scopus.com/inward/record.url?scp=70349824104&partnerID=8YFLogxK
U2 - 10.1080/01490450903060798
DO - 10.1080/01490450903060798
M3 - Article
AN - SCOPUS:70349824104
VL - 26
SP - 442
EP - 450
JO - Geomicrobiology journal
JF - Geomicrobiology journal
SN - 0149-0451
IS - 7
ER -