Uptake of Sr-87 from microcline and biotite by ectomycorrhizal fungi in a Norway spruce forest
Wallander, Håkan LU
; Hagerberg, David
LU
and Åberg, G
(2006)
In Soil Biology & Biochemistry
38(8).
p.2487-2490
- Abstract
- Ectomycorrhizal (EM) fungi growing in symbiosis with tree seedlings have been found in laboratory experiments to stimulate weathering and the uptake of nutrients from silicate minerals. In the present study, we used the natural abundance of strontium isotopes to confirm that these fungi obtain strontium from biotite and microcline under field conditions. Minerals enriched in radiogenic Sr-87 were introduced into fungal in-growth mesh bags and placed under a 5-10 cm thick humus layer developed on boulders in a Norway spruce (Picea abies (L.) Karst) forest in south-western Sweden. EM root tips were sampled above the mesh bags and the Sr-87/Sr-86 ratio was used to calculate the fraction of Sr in the root tips that originated from the... (More)
- Ectomycorrhizal (EM) fungi growing in symbiosis with tree seedlings have been found in laboratory experiments to stimulate weathering and the uptake of nutrients from silicate minerals. In the present study, we used the natural abundance of strontium isotopes to confirm that these fungi obtain strontium from biotite and microcline under field conditions. Minerals enriched in radiogenic Sr-87 were introduced into fungal in-growth mesh bags and placed under a 5-10 cm thick humus layer developed on boulders in a Norway spruce (Picea abies (L.) Karst) forest in south-western Sweden. EM root tips were sampled above the mesh bags and the Sr-87/Sr-86 ratio was used to calculate the fraction of Sr in the root tips that originated from the minerals. In the EM root tips sampled above the mesh bags containing the different minerals, 1.5% of the Sr originated from biotite and 6.4% from microcline. The amount of Sr was more than 300 times higher in the mesh bags containing microcline than in those containing biotite, indicating that proportionally more Sr was released from the biotite. This study demonstrates that EM fungi have the potential to take up measurable amounts of nutrients, such as Ca and K, from microcline and biotite in the field. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/162675
- author
- Wallander, Håkan
LU
; Hagerberg, David
LU
and Åberg, G
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Soil Biology & Biochemistry
- volume
- 38
- issue
- 8
- pages
- 2487 - 2490
- publisher
- Elsevier
- external identifiers
-
- wos:000240183900049
- scopus:33746661056
- ISSN
- 0038-0717
- DOI
- 10.1016/j.soilbio.2006.02.002
- language
- English
- LU publication?
- yes
- id
- c46b5537-45cd-4858-aa06-a59f9099a5c2 (old id 162675)
- date added to LUP
- 2016-04-01 17:01:41
- date last changed
- 2024-01-11 19:20:07
@article{c46b5537-45cd-4858-aa06-a59f9099a5c2,
abstract = {{Ectomycorrhizal (EM) fungi growing in symbiosis with tree seedlings have been found in laboratory experiments to stimulate weathering and the uptake of nutrients from silicate minerals. In the present study, we used the natural abundance of strontium isotopes to confirm that these fungi obtain strontium from biotite and microcline under field conditions. Minerals enriched in radiogenic Sr-87 were introduced into fungal in-growth mesh bags and placed under a 5-10 cm thick humus layer developed on boulders in a Norway spruce (Picea abies (L.) Karst) forest in south-western Sweden. EM root tips were sampled above the mesh bags and the Sr-87/Sr-86 ratio was used to calculate the fraction of Sr in the root tips that originated from the minerals. In the EM root tips sampled above the mesh bags containing the different minerals, 1.5% of the Sr originated from biotite and 6.4% from microcline. The amount of Sr was more than 300 times higher in the mesh bags containing microcline than in those containing biotite, indicating that proportionally more Sr was released from the biotite. This study demonstrates that EM fungi have the potential to take up measurable amounts of nutrients, such as Ca and K, from microcline and biotite in the field.}},
author = {{Wallander, Håkan and Hagerberg, David and Åberg, G}},
issn = {{0038-0717}},
language = {{eng}},
number = {{8}},
pages = {{2487--2490}},
publisher = {{Elsevier}},
series = {{Soil Biology & Biochemistry}},
title = {{Uptake of Sr-87 from microcline and biotite by ectomycorrhizal fungi in a Norway spruce forest}},
url = {{http://dx.doi.org/10.1016/j.soilbio.2006.02.002}},
doi = {{10.1016/j.soilbio.2006.02.002}},
volume = {{38}},
year = {{2006}},
}