Co-existence of multiple fungal functional groups in roots.

<p>For each root sample, the presence of ectomycorrhizal (EcM) and arbuscular mycorrhizal (AM) fungi as well as that of fungi with unknown ecological functions were evaluated. The proportion of root samples colonized by single or multiple fungal functional group(s) is shown for fagaceous (214 roots), non-fagaceous (635 roots), and all (fagaceous+non-fagaceous; 849 roots) plant species.