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Species richness and nitrogen supply regulate the productivity and respiration of ectomycorrhizal fungi in pure culture

Species richness and nitrogen supply regulate the productivity and respiration of ectomycorrhizal fungi in pure culture
Species richness and nitrogen supply regulate the productivity and respiration of ectomycorrhizal fungi in pure culture
The effects of biodiversity of aboveground organisms have been widely investigated in a range of ecosystems, yet whether similar responses are also seen in belowground microbial communities, such as ectomycorrhizal (EM) fungi, are little understood. We investigated, in vitro, the effects of a gradient of 1–8 species of EM fungi interacting with substratum carbon:nitrogen (C:N) ratio on biomass production and CO2 efflux. The model experimental systems enabled us to recover and measure biomass of individuals within communities and calculate net selection and complementarity effects. Both biomass and CO2 efflux increased with species richness particularly under high N concentrations. Moreover, net biodiversity effects were largely positive, driven by both selection and complementarity effects. Our results reveal, in pure culture, the implications of EM species richness on community productivity and C cycling, particularly under high N conditions, and constitute the basis for future experiments under natural conditions.
211-222
Wilkinson, Anna
0dc9b9ca-f064-4d6d-87fd-ecbf55b8aef0
Solan, Martin
c28b294a-1db6-4677-8eab-bd8d6221fecf
Alexander, Ian
9cd5e165-c477-4250-b675-cf670d4f3780
Johnson, David
16f11035-d193-4315-a6c1-22ffbe8efe31
Wilkinson, Anna
0dc9b9ca-f064-4d6d-87fd-ecbf55b8aef0
Solan, Martin
c28b294a-1db6-4677-8eab-bd8d6221fecf
Alexander, Ian
9cd5e165-c477-4250-b675-cf670d4f3780
Johnson, David
16f11035-d193-4315-a6c1-22ffbe8efe31

Wilkinson, Anna, Solan, Martin, Alexander, Ian and Johnson, David (2012) Species richness and nitrogen supply regulate the productivity and respiration of ectomycorrhizal fungi in pure culture. Fungal Ecology, 5 (2), 211-222. (doi:10.1016/j.funeco.2011.08.007).

Record type: Article

Abstract

The effects of biodiversity of aboveground organisms have been widely investigated in a range of ecosystems, yet whether similar responses are also seen in belowground microbial communities, such as ectomycorrhizal (EM) fungi, are little understood. We investigated, in vitro, the effects of a gradient of 1–8 species of EM fungi interacting with substratum carbon:nitrogen (C:N) ratio on biomass production and CO2 efflux. The model experimental systems enabled us to recover and measure biomass of individuals within communities and calculate net selection and complementarity effects. Both biomass and CO2 efflux increased with species richness particularly under high N concentrations. Moreover, net biodiversity effects were largely positive, driven by both selection and complementarity effects. Our results reveal, in pure culture, the implications of EM species richness on community productivity and C cycling, particularly under high N conditions, and constitute the basis for future experiments under natural conditions.

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Published date: 2012

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Local EPrints ID: 455588
URI: http://eprints.soton.ac.uk/id/eprint/455588
PURE UUID: 212f5f03-8134-47f7-bf91-5be4c9a7825e
ORCID for Martin Solan: ORCID iD orcid.org/0000-0001-9924-5574

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Date deposited: 28 Mar 2022 16:41
Last modified: 29 Mar 2022 01:40

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Contributors

Author: Anna Wilkinson
Author: Martin Solan ORCID iD
Author: Ian Alexander
Author: David Johnson

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