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Antagonistic fungal interactions influence carbon dioxide evolution from decomposing wood

Hiscox, Jennifer, Savoury, Melanie, Vaughan, Ian Phillip, Muller, Carsten and Boddy, Lynne 2015. Antagonistic fungal interactions influence carbon dioxide evolution from decomposing wood. Fungal Ecology 14 , pp. 24-32. 10.1016/j.funeco.2014.11.001

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Abstract

Fungal species vary in the rate and way in which they decay wood. Thus, understanding fungal community dynamics within dead wood is crucial to understanding decomposition and carbon cycling. Mycelia compete for wood territory, by employing antagonistic mechanisms involving changes in morphology, and production of volatile and diffusible chemicals. This is metabolically costly, and may affect the rate of use of the resource. The metabolic rate during pairwise interactions between wood decay ascomycetes and basidiomycetes was determined by measuring CO2 production. CO2 evolution altered over time, but changes were combination-specific. In only two combinations e when the dominant competitor overgrew the opponent’s territory as mycelia cords e did CO2 evolution increase over the course of the whole interaction. In most interactions, CO2 evolution increased only after complete replacement of one competitor, suggesting utilisation of the predecessor mycelium or differences in decay ability due to alteration of the resource by the predecessor. There was no relationship between rate of CO2 evolution and combative ability nor outcome of interaction.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Elsevier
ISSN: 1754-5048
Funders: NERC
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 1 November 2014
Last Modified: 12 Jun 2019 02:26
URI: http://orca.cf.ac.uk/id/eprint/69579

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