Final published version
Licence: CC BY
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Species richness and nitrogen supply regulate the productivity and respiration of ectomycorrhizal fungi in pure culture
AU - Wilkinson, Anna
AU - Solan, Martin
AU - Alexander, Ian
AU - Johnson, David
PY - 2012/4/30
Y1 - 2012/4/30
N2 - 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.
AB - 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.
KW - Biodiversity
KW - Carbon:nitrogen ratio
KW - Community ecology
KW - Ecosystem functioning
KW - Ectomycorrhizal fungi
KW - Mycology
KW - Nitrogen availability
U2 - 10.1016/j.funeco.2011.08.007
DO - 10.1016/j.funeco.2011.08.007
M3 - Journal article
VL - 5
SP - 211
EP - 222
JO - Fungal Ecology
JF - Fungal Ecology
SN - 1754-5048
IS - 2
ER -