Application of  ^32/33P to assess the contribution of endomycorrhiza extraradical mycelium to plant phosphorus uptake

Application of ¹⁴C to compare shoot/root carbon partitioning of mycorrhizal and nonmycorrhizal plants

Development of experimental systems to monitor carbon transfer from plants to AM fungi at a high spatial and temporal resolution by labelling with ¹¹C

Investigation of changes in the cost/benefit-ratio of mycorrhizae depending on the developmental stage of the symbiosis