Carbon sequestration and community composition of ectomycorrhizal fungi across a geothermal warming gradient in an Icelandic spruce forest
Rosenstock, Nicholas LU ; Ellström, Magnus LU ; Oddsdottir, Edda ; Sigurdsson, Bjarni D. and Wallander, Håkan LU
(2019)
In Fungal Ecology
40.
p.32-42
- Abstract
Soil warming (0–5.5 °C above controls) effects on ectomycorrhizal growth, carbon sequestration and community composition were examined in a Picea sitchensis forest spanning a geothermal gradient in Iceland. Fungal communities were assayed with sand-filled ingrowth meshbags incubated in the soil for 5 months. Meshbags amended with compost made from maize leaves (a C4 plant enriched in 13C) were incubated for 5 or 12 months and used to estimate C sequestration by the fungal community. Despite increases in tree growth, moderate warming only slightly reduced or had no effect on mycelial growth and had no effect on fungal carbon sequestration or overall ectomycorrhizal community composition. Warming was associated with increased... (More)
Soil warming (0–5.5 °C above controls) effects on ectomycorrhizal growth, carbon sequestration and community composition were examined in a Picea sitchensis forest spanning a geothermal gradient in Iceland. Fungal communities were assayed with sand-filled ingrowth meshbags incubated in the soil for 5 months. Meshbags amended with compost made from maize leaves (a C4 plant enriched in 13C) were incubated for 5 or 12 months and used to estimate C sequestration by the fungal community. Despite increases in tree growth, moderate warming only slightly reduced or had no effect on mycelial growth and had no effect on fungal carbon sequestration or overall ectomycorrhizal community composition. Warming was associated with increased abundance of ascomycetes, particularly pyronemataceous ectomycorrhizal fungi, and altered saprotrophic community composition. Increased nitrate availability and root turnover may explain the lack of a positive ectomycorrhizal growth response to increased tree growth and observed shifts in community composition with warming.
(Less)
- author
- Rosenstock, Nicholas
LU
; Ellström, Magnus
LU
; Oddsdottir, Edda
; Sigurdsson, Bjarni D.
and Wallander, Håkan
LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Carbon sequestration, Climate change, Ectomycorrhiza, Picea sitchensis, Pyronemataceae, Soil warming, Wilcoxina
- in
- Fungal Ecology
- volume
- 40
- pages
- 32 - 42
- publisher
- Elsevier
- external identifiers
-
- scopus:85050380083
- ISSN
- 1754-5048
- DOI
- 10.1016/j.funeco.2018.05.010
- language
- English
- LU publication?
- yes
- id
- 90b436c2-0aee-4f66-8ded-4e146714bf8d
- date added to LUP
- 2018-09-26 14:27:25
- date last changed
- 2022-04-25 17:21:57
@article{90b436c2-0aee-4f66-8ded-4e146714bf8d,
abstract = {{<p>Soil warming (0–5.5 °C above controls) effects on ectomycorrhizal growth, carbon sequestration and community composition were examined in a Picea sitchensis forest spanning a geothermal gradient in Iceland. Fungal communities were assayed with sand-filled ingrowth meshbags incubated in the soil for 5 months. Meshbags amended with compost made from maize leaves (a C4 plant enriched in <sup>13</sup>C) were incubated for 5 or 12 months and used to estimate C sequestration by the fungal community. Despite increases in tree growth, moderate warming only slightly reduced or had no effect on mycelial growth and had no effect on fungal carbon sequestration or overall ectomycorrhizal community composition. Warming was associated with increased abundance of ascomycetes, particularly pyronemataceous ectomycorrhizal fungi, and altered saprotrophic community composition. Increased nitrate availability and root turnover may explain the lack of a positive ectomycorrhizal growth response to increased tree growth and observed shifts in community composition with warming.</p>}},
author = {{Rosenstock, Nicholas and Ellström, Magnus and Oddsdottir, Edda and Sigurdsson, Bjarni D. and Wallander, Håkan}},
issn = {{1754-5048}},
keywords = {{Carbon sequestration; Climate change; Ectomycorrhiza; Picea sitchensis; Pyronemataceae; Soil warming; Wilcoxina}},
language = {{eng}},
pages = {{32--42}},
publisher = {{Elsevier}},
series = {{Fungal Ecology}},
title = {{Carbon sequestration and community composition of ectomycorrhizal fungi across a geothermal warming gradient in an Icelandic spruce forest}},
url = {{http://dx.doi.org/10.1016/j.funeco.2018.05.010}},
doi = {{10.1016/j.funeco.2018.05.010}},
volume = {{40}},
year = {{2019}},
}