symbiosis

[Thomas O'Dell]

legumes (especially sub genera Papillionoideae and Mimosoideaea) tend to 
be highly va mycorrhiza dependant. the plant-fungal-bacterial symbiosis 
is commly referred to as tripartite and has been the subject of 
considerable research. certainly hundreds of papers exist on the topic 
particularly re soybean, clover and other ag. crop plants. 
actinorrhizal (frankia-nodulated) plants also tend to be mycorrhizal, va 
or ecto (e.g. alnus; dryas) depending on the plant species.