skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High‐resolution minirhizotrons advance our understanding of root‐fungal dynamics in an experimentally warmed peatland

Abstract

Mycorrhizal fungi enable plants to thrive in the cold, waterlogged, organic soils of boreal peatlands and, with saprotrophic fungi, largely contribute to the sequestration of atmospheric carbon in peat. Hence, fungi support the contribution of peatlands to global climate regulation, on which society depends. Here we used high-resolution minirhizotrons for an unprecedented glimpse of the belowground world of a forested bog and highlighted linkages between environmental change and the abundance, dynamics, and morphology of vascular plant fine roots and fungal mycelium. These changes may have implications for peat carbon accumulation on the boreal landscape.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [3];  [1]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [1]
  1. Climate Change Science Institute and Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge TN USA
  2. Department of Plant and Microbial Biology University of Minnesota St. Paul MN USA
  3. Department of Microbiology and Plant Pathology Center for Conservation Biology University of California‐Riverside Riverside CA USA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1730983
Alternate Identifier(s):
OSTI ID: 1735437; OSTI ID: 1786620
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Plants, People, Planet
Additional Journal Information:
Journal Name: Plants, People, Planet; Journal ID: ISSN 2572-2611
Publisher:
New Phytologist Trust - Wiley
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; dynamics; fine roots; minirhizotron; mycorrhizal fungi; peatland; phenology; warming

Citation Formats

Defrenne, Camille E., Childs, Joanne, Fernandez, Christopher W., Taggart, Michael, Nettles, W. Robert, Allen, Michael F., Hanson, Paul J., and Iversen, Colleen M.. High‐resolution minirhizotrons advance our understanding of root‐fungal dynamics in an experimentally warmed peatland. United States: N. p., 2020. Web. https://doi.org/10.1002/ppp3.10172.
Defrenne, Camille E., Childs, Joanne, Fernandez, Christopher W., Taggart, Michael, Nettles, W. Robert, Allen, Michael F., Hanson, Paul J., & Iversen, Colleen M.. High‐resolution minirhizotrons advance our understanding of root‐fungal dynamics in an experimentally warmed peatland. United States. https://doi.org/10.1002/ppp3.10172
Defrenne, Camille E., Childs, Joanne, Fernandez, Christopher W., Taggart, Michael, Nettles, W. Robert, Allen, Michael F., Hanson, Paul J., and Iversen, Colleen M.. Thu . "High‐resolution minirhizotrons advance our understanding of root‐fungal dynamics in an experimentally warmed peatland". United States. https://doi.org/10.1002/ppp3.10172.
@article{osti_1730983,
title = {High‐resolution minirhizotrons advance our understanding of root‐fungal dynamics in an experimentally warmed peatland},
author = {Defrenne, Camille E. and Childs, Joanne and Fernandez, Christopher W. and Taggart, Michael and Nettles, W. Robert and Allen, Michael F. and Hanson, Paul J. and Iversen, Colleen M.},
abstractNote = {Mycorrhizal fungi enable plants to thrive in the cold, waterlogged, organic soils of boreal peatlands and, with saprotrophic fungi, largely contribute to the sequestration of atmospheric carbon in peat. Hence, fungi support the contribution of peatlands to global climate regulation, on which society depends. Here we used high-resolution minirhizotrons for an unprecedented glimpse of the belowground world of a forested bog and highlighted linkages between environmental change and the abundance, dynamics, and morphology of vascular plant fine roots and fungal mycelium. These changes may have implications for peat carbon accumulation on the boreal landscape.},
doi = {10.1002/ppp3.10172},
journal = {Plants, People, Planet},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/ppp3.10172

Save / Share:

Works referenced in this record:

High sensitivity of peat decomposition to climate change through water-table feedback
journal, October 2008

  • Ise, Takeshi; Dunn, Allison L.; Wofsy, Steven C.
  • Nature Geoscience, Vol. 1, Issue 11
  • DOI: 10.1038/ngeo331

Advancing the use of minirhizotrons in wetlands
journal, September 2011


Effects of climate warming on Sphagnum photosynthesis in peatlands depend on peat moisture and species‐specific anatomical traits
journal, September 2019

  • Jassey, Vincent E. J.; Signarbieux, Constant
  • Global Change Biology, Vol. 25, Issue 11
  • DOI: 10.1111/gcb.14788

Rethinking ectomycorrhizal succession: are root density and hyphal exploration types drivers of spatial and temporal zonation?
journal, June 2011


Attaining whole-ecosystem warming using air and deep-soil heating methods with an elevated CO 2 atmosphere
journal, January 2017

  • Hanson, Paul J.; Riggs, Jeffery S.; Nettles, W. Robert
  • Biogeosciences, Vol. 14, Issue 4
  • DOI: 10.5194/bg-14-861-2017

Do Root Exudates Enhance Peat Decomposition?
journal, May 2012


Common mycorrhizal networks provide a potential pathway for the transfer of hydraulically lifted water between plants
journal, March 2007

  • Egerton-Warburton, L. M.; Querejeta, J. I.; Allen, M. F.
  • Journal of Experimental Botany, Vol. 58, Issue 6
  • DOI: 10.1093/jxb/erm009

Vascular plant-mediated controls on atmospheric carbon assimilation and peat carbon decomposition under climate change
journal, April 2018

  • Gavazov, Konstantin; Albrecht, Remy; Buttler, Alexandre
  • Global Change Biology, Vol. 24, Issue 9
  • DOI: 10.1111/gcb.14140

Peatlands and Global Change: Response and Resilience
journal, November 2016


Comparative genomics and transcriptomics depict ericoid mycorrhizal fungi as versatile saprotrophs and plant mutualists
journal, January 2018

  • Martino, Elena; Morin, Emmanuelle; Grelet, Gwen-Aëlle
  • New Phytologist, Vol. 217, Issue 3
  • DOI: 10.1111/nph.14974

Modelling the influence of ectomycorrhizal decomposition on plant nutrition and soil carbon sequestration in boreal forest ecosystems
journal, October 2016

  • Baskaran, Preetisri; Hyvönen, Riitta; Berglund, S. Linnea
  • New Phytologist, Vol. 213, Issue 3
  • DOI: 10.1111/nph.14213

Peatland protection and restoration are key for climate change mitigation
journal, October 2020

  • Humpenöder, Florian; Karstens, Kristine; Lotze-Campen, Hermann
  • Environmental Research Letters, Vol. 15, Issue 10
  • DOI: 10.1088/1748-9326/abae2a

Diurnal patterns of productivity of arbuscular mycorrhizal fungi revealed with the Soil Ecosystem Observatory
journal, July 2013

  • Hernandez, Rebecca R.; Allen, Michael F.
  • New Phytologist, Vol. 200, Issue 2
  • DOI: 10.1111/nph.12393

Effects of long-term temperature and nutrient manipulation on Norway spruce fine roots and mycelia production
journal, September 2012


Microbial Community Stratification Linked to Utilization of Carbohydrates and Phosphorus Limitation in a Boreal Peatland at Marcell Experimental Forest, Minnesota, USA
journal, March 2014

  • Lin, Xueju; Tfaily, Malak M.; Steinweg, J. Megan
  • Applied and Environmental Microbiology, Vol. 80, Issue 11
  • DOI: 10.1128/AEM.00205-14

Hydraulic redistribution of water from Pinus ponderosa trees to seedlings: evidence for an ectomycorrhizal pathway
journal, April 2008


Summer temperature increase has distinct effects on the ectomycorrhizal fungal communities of moist tussock and dry tundra in Arctic Alaska
journal, October 2014

  • Morgado, Luis N.; Semenova, Tatiana A.; Welker, Jeffrey M.
  • Global Change Biology, Vol. 21, Issue 2
  • DOI: 10.1111/gcb.12716

Diversity and function of fungi in peatlands: A carbon cycling perspective
journal, March 2006

  • Thormann, Markus N.
  • Canadian Journal of Soil Science, Vol. 86, Issue Special Issue
  • DOI: 10.4141/S05-082

New insights into the mycorrhizal Rhizoscyphus ericae aggregate: spatial structure and co-colonization of ectomycorrhizal and ericoid roots
journal, July 2010


Diversity and community structure of ericoid mycorrhizal fungi in European bogs and heathlands across a gradient of nitrogen deposition
journal, August 2020

  • Van Geel, Maarten; Jacquemyn, Hans; Peeters, Gerrit
  • New Phytologist, Vol. 228, Issue 5
  • DOI: 10.1111/nph.16789

Dynamics of Fine Root, Fungal Rhizomorphs, and Soil Respiration in a Mixed Temperate Forest: Integrating Sensors and Observations
journal, January 2008


Massive peatland carbon banks vulnerable to rising temperatures
journal, May 2020


Host phenology and potential saprotrophism of ectomycorrhizal fungi in the boreal forest
journal, July 2016

  • Hupperts, Stefan F.; Karst, Justine; Pritsch, Karin
  • Functional Ecology, Vol. 31, Issue 1
  • DOI: 10.1111/1365-2435.12695

Microclimatic response to increasing shrub cover and its effect on Sphagnum CO 2 exchange in a bog
journal, March 2012

  • Chong, Mandy; Humphreys, Elyn; Moore, Tim R.
  • Écoscience, Vol. 19, Issue 1
  • DOI: 10.2980/19-1-3489

Fungal diversity in peatlands and its contribution to carbon cycling
journal, February 2020


Experimental warming alters potential function of the fungal community in boreal forest
journal, March 2016

  • Treseder, Kathleen K.; Marusenko, Yevgeniy; Romero-Olivares, Adriana L.
  • Global Change Biology, Vol. 22, Issue 10
  • DOI: 10.1111/gcb.13238

Persistent high temperature and low precipitation reduce peat carbon accumulation
journal, May 2016

  • Bragazza, Luca; Buttler, Alexandre; Robroek, Bjorn J. M.
  • Global Change Biology, Vol. 22, Issue 12
  • DOI: 10.1111/gcb.13319

Climate variation effects on fungal fruiting
journal, August 2014


Ecosystem warming extends vegetation activity but heightens vulnerability to cold temperatures
journal, August 2018

  • Richardson, Andrew D.; Hufkens, Koen; Milliman, Thomas
  • Nature, Vol. 560, Issue 7718, p. 368-371
  • DOI: 10.1038/s41586-018-0399-1

Net primary production of ectomycorrhizas in a California forest
journal, August 2014


Ectomycorrhizal fungal response to warming is linked to poor host performance at the boreal‐temperate ecotone
journal, September 2016

  • Fernandez, Christopher W.; Nguyen, Nhu H.; Stefanski, Artur
  • Global Change Biology, Vol. 23, Issue 4
  • DOI: 10.1111/gcb.13510

Estimation of the biomass and seasonal growth of external mycelium of ectomycorrhizal fungi in the field
journal, September 2001


Ecological responses to forest age, habitat, and host vary by mycorrhizal type in boreal peatlands
journal, March 2018


Mycorrhiza in sedges?an overview
journal, April 2004


Mycorrhizal Hyphal Turnover as a Dominant Process for Carbon Input into Soil Organic Matter
journal, March 2006


Welcome to the Atta world: A framework for understanding the effects of leaf‐cutter ants on ecosystem functions
journal, March 2019

  • Swanson, Amanda C.; Schwendenmann, Luitgard; Allen, Michael F.
  • Functional Ecology, Vol. 33, Issue 8
  • DOI: 10.1111/1365-2435.13319

Exploration types of ectomycorrhizae
journal, June 2001


Vertical distribution of fungi in hollows and hummocks of boreal peatlands
journal, June 2017


Climate change influences mycorrhizal fungal–plant interactions, but conclusions are limited by geographical study bias
journal, February 2020

  • Bennett, Alison E.; Classen, Aimée T.
  • Ecology, Vol. 101, Issue 4
  • DOI: 10.1002/ecy.2978

Mycorrhizas and nutrient cycling in ecosystems - a journey towards relevance?
journal, March 2003


On the persistence of Cenococcum geophilum ectomycorrhizas and its implications for forest carbon and nutrient cycles
journal, October 2013


Peatland warming strongly increases fine-root growth
journal, July 2020

  • Malhotra, Avni; Brice, Deanne J.; Childs, Joanne
  • Proceedings of the National Academy of Sciences, Vol. 117, Issue 30
  • DOI: 10.1073/pnas.2003361117

Biogeochemical plant–soil microbe feedback in response to climate warming in peatlands
journal, December 2012

  • Bragazza, Luca; Parisod, Julien; Buttler, Alexandre
  • Nature Climate Change, Vol. 3, Issue 3
  • DOI: 10.1038/nclimate1781

Carbon sequestration is related to mycorrhizal fungal community shifts during long-term succession in boreal forests
journal, December 2014

  • Clemmensen, Karina E.; Finlay, Roger D.; Dahlberg, Anders
  • New Phytologist, Vol. 205, Issue 4
  • DOI: 10.1111/nph.13208

Rapid loss of an ecosystem engineer: Sphagnum decline in an experimentally warmed bog
journal, October 2019

  • Norby, Richard J.; Childs, Joanne; Hanson, Paul J.
  • Ecology and Evolution, Vol. 9, Issue 22
  • DOI: 10.1002/ece3.5722

Rapid Net Carbon Loss From a Whole‐Ecosystem Warmed Peatland
journal, July 2020

  • Hanson, Paul J.; Griffiths, Natalie A.; Iversen, Colleen M.
  • AGU Advances, Vol. 1, Issue 3
  • DOI: 10.1029/2020AV000163

Patterns and drivers in spring and autumn phenology differ above- and belowground in four ecosystems under the same macroclimatic conditions
journal, September 2019


Contrasting acclimation responses to elevated CO 2 and warming between an evergreen and a deciduous boreal conifer
journal, April 2020

  • Dusenge, Mirindi E.; Madhavji, Sasha; Way, Danielle A.
  • Global Change Biology, Vol. 26, Issue 6
  • DOI: 10.1111/gcb.15084

Warming-induced shift in European mushroom fruiting phenology
journal, August 2012

  • Kauserud, H.; Heegaard, E.; Buntgen, U.
  • Proceedings of the National Academy of Sciences, Vol. 109, Issue 36
  • DOI: 10.1073/pnas.1200789109

Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming
journal, January 2019

  • Fernandez, Christopher W.; Heckman, Katherine; Kolka, Randall
  • Ecology Letters, Vol. 22, Issue 3
  • DOI: 10.1111/ele.13209

Fine-root growth in a forested bog is seasonally dynamic, but shallowly distributed in nutrient-poor peat
journal, March 2017

  • Iversen, Colleen M.; Childs, Joanne; Norby, Richard J.
  • Plant and Soil, Vol. 424, Issue 1-2, p. 123-143
  • DOI: 10.1007/s11104-017-3231-z

Climate change favours specific fungal communities in boreal peatlands
journal, May 2018


Faster nitrogen cycling and more fungal and root biomass in cold ecosystems under experimental warming: a meta‐analysis
journal, September 2019

  • Salazar, Alejandro; Rousk, Kathrin; Jónsdóttir, Ingibjörg S.
  • Ecology, Vol. 101, Issue 2
  • DOI: 10.1002/ecy.2938