Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1111/oik.06138
Document Shareable Link
Title (Primary) Interactions between functionally diverse fungal mutualists inconsistently affect plant performance and competition
Author Thakur, M.P.; Quast, V.; van Dam, N.M.; Eisenhauer, N.; Roscher, C.; Biere, A.; Martinez-Medina, A.
Source Titel Oikos
Year 2019
Department iDiv; PHYDIV
Volume 128
Issue 8
Page From 1136
Page To 1146
Language englisch
Keywords arbuscular mycorrhizal fungi ; Trichoderma ; fungal symbionts; plant–plant interactions; fungal–fungal interactions ; plant–fungal interactions
Abstract Plants form mutualistic relationship with a variety of belowground fungal species. Such a mutualistic relationship can enhance plant growth and resistance to pathogens. Yet, we know little about how interactions between functionally diverse groups of fungal mutualists affect plant performance and competition. We experimentally determined the effects of interaction between two functional groups of belowground fungi that form mutualistic relationship with plants, arbuscular mycorrhizal (AM) fungi and Trichoderma, on interspecific competition between pairs of closely related plant species from four different genera. We hypothesized that the combination of two functionally diverse belowground fungal species would allow plants and fungi to partition their symbiotic relationships and relax plant‐plant competition. Our results show that: 1) the AM fungal species consistently outcompeted the Trichoderma species independent of plant combinations; 2) the fungal species generally had limited effects on competitive interactions between plants; 3) however, the combination of fungal species relaxed interspecific competition in one of the four instances of plant–plant competition, despite the general competitive superiority of AM fungi over Trichoderma. We highlight that the competitive outcome between functionally diverse fungal species may show high consistency across a broad range of host plants and their combinations. However, despite this consistent competitive hierarchy, the consequences of their interaction for plant performance and competition can strongly vary among plant communities.
Persistent UFZ Identifier
Thakur, M.P., Quast, V., van Dam, N.M., Eisenhauer, N., Roscher, C., Biere, A., Martinez-Medina, A. (2019):
Interactions between functionally diverse fungal mutualists inconsistently affect plant performance and competition
Oikos 128 (8), 1136 - 1146 10.1111/oik.06138