Record ID No. |
1339 |
Author(s) |
Enkhtuya B., Vosatka M. , 2005 |
Affiliation |
Institute of Botany, Academy of Sciences of the Czech Republic, 252 43 Pruhonice, Czech Republic. |
Title |
Interaction between grass and trees mediated by extraradical mycelium of symbiotic arbuscular mycorrhizal fungi |
Source. Vol.(no):Page |
Symbiosis Rehovot. 38(3): 261-276p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biological Interaction |
Host |
Agrostis capillaris, Acer pseudoplatanus (maple), Alnus glutinosa (alder), Salix purpurea (willow |
Organism |
Glomus mosseae, Gigaspora rosea |
Country |
Czech Republic, Europe |
Abstracts |
We investigated the effects of the arbuscular mycorrhizal fungi (AMF) Glomus mosseae BEG99 and Gigaspora rosea BEG9 on plant growth, soil aggregation and 32P transfer between grass and tree seedlings via the extraradical mycelium (ERM). Two microcosm experiments were conducted in rhizoboxes, where the grass Agrostis capillaris and seedlings of Acer pseudoplatanus (maple), Alnus glutinosa (alder) and cutting-derived plants of Salix purpurea (willow) were grown separately (1), interacting via roots (2), or interacting via the ERM (3). In Experiment 1, alder biomass was significantly lower in treatment where plants interacted via roots than where grass and trees interacted only via the ERM or grew separately. In spite of having significant enhancement of mycorrhiza development, the grass was a relatively strong competitor to the trees when interacting via roots. In Experiment 2, both AMF species varied in the effect on grass and three tree species interaction and in mycorrhiza development. Trees were infected by ERM hyphae from the quickly-growing grasses, and the ERM linking roots facilitates 32P transfer between the tree and the grass. Apart from this role, the ERM had positive effects on soil aggregation and their presence can represent a significant contribution to erosion control. |