This work was supported by the Natural Environment Research Council (NE/C507510/1). We thank S. Van der Linde, A. Sim, L. Shivraj, and P. Parkin.Peer reviewedPublisher PD

Clarisse Kanters

David Johnson

Ian Anderson

Malmström

Schultz

Shaw

Smith

White

Forests

English

Kanters, Clarisse

Anderson, Ian C.

Johnson, David

The University of Manchester - Institutional Repository

Chewing up the Wood-Wide Web: Selective Grazing on Ectomycorrhizal Fungi by Collembola

The mycelia of some symbiotic ectomycorrhizal fungi form extensive  networks—the so called “wood-wide web”—that have key roles in biogeochemical  cycling. By interacting with myriad soil organisms such as collembola, the fungi directly affect the functioning of above- and below-ground multitrophic interactions in ecosystems. Here we tested whether the grazing activities of collembola affected the growth of ectomycorrhizal fungi in single or mixed species axenic cultures, and their impact on ectomycorrhizal diversity in litterbags in the field. We also used 14CO2 pulse-labelling to test the effects of collembola on respiratory losses of recent plant assimilate from external mycelium of ectomycorrhizal fungi in symbiosis with Scots pine or birch. We found that the effects of collembola varied across species, and caused a significant reduction in the amount of 14CO2 released from external mycorrhizal mycelium from three of the eight species combinations but increased it in one. Selective grazing also significantly affected the community structure of ectomycorrhizal fungi. Our findings demonstrate the importance of collembola in regulating ectomycorrhizal fungal diversity and activity and below-ground pathways of carbon flow

Multidisciplinary Digital Publishing Institute

The mycelia of some symbiotic ectomycorrhizal fungi form extensive networks-the so called "wood-wide web"-that have key roles in biogeochemical cycling. By interacting with myriad soil organisms such as collembola, the fungi directly affect the functioning of above- and below-ground multitrophic interactions in ecosystems. Here we tested whether the grazing activities of collembola affected the growth of ectomycorrhizal fungi in single or mixed species axenic cultures, and their impact on ectomycorrhizal diversity in litterbags in the field. We also used 14CO2 pulse-labelling to test the effects of collembola on respiratory losses of recent plant assimilate from external mycelium of ectomycorrhizal fungi in symbiosis with Scots pine or birch. We found that the effects of collembola varied across species, and caused a significant reduction in the amount of 14CO2 released from external mycorrhizal mycelium from three of the eight species combinations but increased it in one. Selective grazing also significantly affected the community structure of ectomycorrhizal fungi. Our findings demonstrate the importance of collembola in regulating ectomycorrhizal fungal diversity and activity and below-ground pathways of carbon flow

Anderson, Ian C. (R10589)

Western Sydney ResearchDirect

Chewing up the wood-wide web : selective grazing on ectomycorrhizal fungi by collembola

Crossref

This work was supported by the Natural Environment Research Council (NE/C507510/1). We thank S. Van der Linde, A. Sim, L. Shivraj, and P. Parkin.Peer reviewe

Anderson, Ian C

The Open University

Chewing up the wood-wide web : selective grazing on ectomycorrhizal fungi by collembola

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The University of Manchester - Institutional Repository

Multidisciplinary Digital Publishing Institute

The University of Manchester - Institutional Repository

Western Sydney ResearchDirect

Crossref

The Open University