Production and effects of volatile organic compounds during interspecific interactions

El Ariebi, Nawal, Hiscox, Jennifer, Scriven, Sarah A., Muller, Carsten Theodor ORCID: https://orcid.org/0000-0003-0455-7132 and Boddy, Lynne ORCID: https://orcid.org/0000-0003-1845-6738 2016. Production and effects of volatile organic compounds during interspecific interactions. Fungal Ecology 20 , pp. 144-154. 10.1016/j.funeco.2015.12.013

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Abstract

Competition between mycelia of saprotrophic cord-forming basidiomycetes occurs both within dead woody resources and in the soil-litter interface, and involves a variety of antagonistic mechanisms including the production of volatile organic compounds (VOCs). The antagonistic potential of VOC profiles from interactions in wood blocks and in soil microcosms was assessed using shared headspace experiments, and the profile of VOCs emitted over the course of interactions elucidated using solid phase microextraction (SPME) with gas chromatography-mass spectrometry (GC–MS). Quantitative and qualitative changes in VOC production occurred in interactions compared to self-pairing controls, with different VOC profiles from fungi growing in wood blocks compared to soil trays. There were both stimulatory and inhibitory effects of VOCs on target mycelial extension rate, hyphal coverage and fractal dimension. VOC-mediated effects were greater in self-pairing controls compared to interactions, and differed depending on the substratum in which the VOC-producing fungi were growing.

Item Type:	Article
Status:	Published
Schools:	Biosciences
Subjects:	Q Science > QH Natural history > QH301 Biology
Uncontrolled Keywords:	Basidiomycetes; Cord-formers; Fractal dimension; Fungi; GC–MS; Image analysis; Secondary metabolites; SPME; VOCs
Publisher:	Elsevier
ISSN:	1754-5048
Date of Acceptance:	22 December 2015
Last Modified:	01 Nov 2022 09:37
URI:	https://orca.cardiff.ac.uk/id/eprint/88628

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