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Open AccessArticle

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

1
Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen AB24 3UU, UK
2
Hawkesbury Institute for the Environment, University of Western Sydney, Penrith, NSW 1797, Australia
*
Author to whom correspondence should be addressed.
Academic Editors: Burenjargal Otgonsuren and Eric J. Jokela
Forests 2015, 6(8), 2560-2570; https://doi.org/10.3390/f6082560
Received: 6 March 2015 / Revised: 19 June 2015 / Accepted: 21 July 2015 / Published: 28 July 2015
(This article belongs to the Special Issue Mycorrhizal Fungi of Forests)
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. View Full-Text
Keywords: biodiversity; soil invertebrates; multitrophic interactions; carbon turnover; selective grazing; pulse-labelling; 14CO2 biodiversity; soil invertebrates; multitrophic interactions; carbon turnover; selective grazing; pulse-labelling; 14CO2
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MDPI and ACS Style

Kanters, C.; Anderson, I.C.; Johnson, D. Chewing up the Wood-Wide Web: Selective Grazing on Ectomycorrhizal Fungi by Collembola. Forests 2015, 6, 2560-2570. https://doi.org/10.3390/f6082560

AMA Style

Kanters C, Anderson IC, Johnson D. Chewing up the Wood-Wide Web: Selective Grazing on Ectomycorrhizal Fungi by Collembola. Forests. 2015; 6(8):2560-2570. https://doi.org/10.3390/f6082560

Chicago/Turabian Style

Kanters, Clarisse; Anderson, Ian C.; Johnson, David. 2015. "Chewing up the Wood-Wide Web: Selective Grazing on Ectomycorrhizal Fungi by Collembola" Forests 6, no. 8: 2560-2570. https://doi.org/10.3390/f6082560

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