Evidence for mutualist limitation: the impacts of conspecific density on the mycorrhizal inoculum potential of woodland soils

@article{Haskins2005EvidenceFM,
  title={Evidence for mutualist limitation: the impacts of conspecific density on the mycorrhizal inoculum potential of woodland soils},
  author={Kristin E. Haskins and Catherine A. Gehring},
  journal={Oecologia},
  year={2005},
  volume={145},
  pages={123-131}
}
The ability of seedlings to establish can depend on the availability of appropriate mycorrhizal fungal inoculum. The possibility that mycorrhizal mutualists limit the distribution of seedlings may depend on the prevalence of the plant hosts that form the same type of mycorrhizal association as the target seedling species and thus provide inoculum. We tested this hypothesis by measuring ectomycorrhizal (EM) fine root distribution and conducting an EM inoculum potential bioassay along a gradient… 
Below-ground interactions with arbuscular mycorrhizal shrubs decrease the performance of pinyon pine and the abundance of its ectomycorrhizas.
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The results suggest that below-ground competition with AM shrubs negatively impacted both pinyons and EM fungi, and similar competitive effects may be observed in other ecosystems given that drought frequency and severity are predicted to increase for many land interiors.
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TLDR
It is posited that the consequences of shifts in EM fungal abundance and community composition extend beyond the individual tree to the landscape; these changes may affect population dynamics of both symbionts, ecosystem...
Genetically based susceptibility to herbivory influences the ectomycorrhizal fungal communities of a foundation tree species.
TLDR
The EMF community composition was more strongly influenced by innate genetic differences in plant traits associated with resistance and susceptibility to herbivory than by indirect effects of Herbivory on host plant relationships with ectomycorrhizal fungi.
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