Uptake of P from apatite by Pinus sylvestris seedlings colonised by different ectomycorrhizal fungi
Wallander, Håkan LU
(2000)
In Plant and Soil
218(1-2).
p.249-256
- Abstract
- The role of ectomycorrhizal (EM) fungi in increasing apatite dissolution was tested in a pot system with Pinus sylvestris (L.) seedlings growing in a sand/peat mixture. Non-mycorrhizal seedlings and seedlings inoculated with one of three different isolates of EM fungi were grown for 210 days in pots divided into a root-containing and a root-free compartment. The EM mycelium was allowed to colonise the root-free compartment, to which apatite had been added as a P source in half of the pots. All mineral nutrients except P were supplied in the form of a balanced nutrient solution. Seedlings grown with apatite as their P source grew significantly better and had higher P concentrations (1.1-1.5 mg/g) compared with seedlings growing without any... (More)
- The role of ectomycorrhizal (EM) fungi in increasing apatite dissolution was tested in a pot system with Pinus sylvestris (L.) seedlings growing in a sand/peat mixture. Non-mycorrhizal seedlings and seedlings inoculated with one of three different isolates of EM fungi were grown for 210 days in pots divided into a root-containing and a root-free compartment. The EM mycelium was allowed to colonise the root-free compartment, to which apatite had been added as a P source in half of the pots. All mineral nutrients except P were supplied in the form of a balanced nutrient solution. Seedlings grown with apatite as their P source grew significantly better and had higher P concentrations (1.1-1.5 mg/g) compared with seedlings growing without any P source (0.6-1.0 mg/g), indicating that they were able to use apatite-P. A weathering budget based on P uptake indicated that 6.7-18.9 mg apatite was weathered per pot which corresponds to 0.3-0.9% of the added apatite. A similar budget based on Sr uptake indicated that the apatite weathering rate was lower (0.13-0.3%). One Suillus variegatus isolate and an unidentified fungus had a significant positive influence on the dissolution of apatite, while another S. variegatus isolate had colonised roots poorly and did not influence weathering significantly. Oxalic acid was detected in root-free soil and was especially abundant in compartments colonised by S. variegatus. The concentration of oxalic acid was correlated to the concentration of phosphate in the soil solution of root-free soil, indicating that oxalic acid influences apatite dissolution. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/147039
- author
- Wallander, Håkan
LU
- organization
- publishing date
- 2000
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Plant and Soil
- volume
- 218
- issue
- 1-2
- pages
- 249 - 256
- publisher
- Springer
- external identifiers
-
- scopus:0034014402
- ISSN
- 0032-079X
- DOI
- 10.1023/A:1014936217105
- language
- English
- LU publication?
- yes
- id
- e3d9c1a0-3403-430a-bf9a-4b57369d3c73 (old id 147039)
- date added to LUP
- 2016-04-01 12:36:16
- date last changed
- 2022-03-21 06:38:05
@article{e3d9c1a0-3403-430a-bf9a-4b57369d3c73,
abstract = {{The role of ectomycorrhizal (EM) fungi in increasing apatite dissolution was tested in a pot system with Pinus sylvestris (L.) seedlings growing in a sand/peat mixture. Non-mycorrhizal seedlings and seedlings inoculated with one of three different isolates of EM fungi were grown for 210 days in pots divided into a root-containing and a root-free compartment. The EM mycelium was allowed to colonise the root-free compartment, to which apatite had been added as a P source in half of the pots. All mineral nutrients except P were supplied in the form of a balanced nutrient solution. Seedlings grown with apatite as their P source grew significantly better and had higher P concentrations (1.1-1.5 mg/g) compared with seedlings growing without any P source (0.6-1.0 mg/g), indicating that they were able to use apatite-P. A weathering budget based on P uptake indicated that 6.7-18.9 mg apatite was weathered per pot which corresponds to 0.3-0.9% of the added apatite. A similar budget based on Sr uptake indicated that the apatite weathering rate was lower (0.13-0.3%). One Suillus variegatus isolate and an unidentified fungus had a significant positive influence on the dissolution of apatite, while another S. variegatus isolate had colonised roots poorly and did not influence weathering significantly. Oxalic acid was detected in root-free soil and was especially abundant in compartments colonised by S. variegatus. The concentration of oxalic acid was correlated to the concentration of phosphate in the soil solution of root-free soil, indicating that oxalic acid influences apatite dissolution.}},
author = {{Wallander, Håkan}},
issn = {{0032-079X}},
language = {{eng}},
number = {{1-2}},
pages = {{249--256}},
publisher = {{Springer}},
series = {{Plant and Soil}},
title = {{Uptake of P from apatite by Pinus sylvestris seedlings colonised by different ectomycorrhizal fungi}},
url = {{http://dx.doi.org/10.1023/A:1014936217105}},
doi = {{10.1023/A:1014936217105}},
volume = {{218}},
year = {{2000}},
}