Skip to Main Content
Aspen-associated mycorrhizal fungal production and respiration as a function of changing CO2, O3 and climatic variablesAuthor(s): Carrie J. Andrew; Linda T.A. van Diepen; R. Michael Miller; Erik A. Lilleskov
Source: Fungal Ecology. 10: 70-80.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
Download Publication (733.0 KB)
DescriptionThe relationships of mycorrhizal fungal respiration and productivity to climate and atmospheric chemistry remain under characterized. We quantified mycorrhizal sporocarp and hyphal respiration, as well as growing season net hyphal production, under ambient and elevated carbon dioxide (CO2) and ozone (O3) in relation to natural temperature and moisture variation. Hyphal respiration did not respond significantly to elevated CO2 and O3. Sporocarp respiration was affected by temperature and moisture content while hyphal respiratory response to temperature was undetected over the narrower range of soil temperatures captured. Hyphal respiration comprised 31% of soil respiration, and the ratio of hyphal respiration to soil respiration declined with elevated CO2. Hyphal biomass was reduced under all treatments though not statistically significant. Given the large fraction of soil respiration represented by mycorrhizal fungi and its sensitivity to climate, a small change in fungal respiration could strongly affect carbon budgets and cycling under climate change.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationAndrew, Carrie J.; van Diepen, Linda T.A.; Miller, R. Michael; Lilleskov, Erik A. 2014. Aspen-associated mycorrhizal fungal production and respiration as a function of changing CO2, O3 and climatic variables. Fungal Ecology. 10: 70-80.
KeywordsCarbon dioxide, Mycorrhizal fungi, Ozone, Populus tremuloides, Productivity, Respiration
- Productivity and community structure of ectomycorrhizal fungal sporocarps under increased atmospheric CO2 and O3
- Chemistry and decomposition of litter from Populus tremuloides Michaux grown at elevated atmospheric CO2and varying N availability
- Can elevated CO2 and ozone shift the genetic composition of aspen (Populus tremuloides) stands? New Phytologist
XML: View XML