Mutualistic plant-fungus association

Marker , A., Steffan, N., Floss, K., Hellwig, S., Steiner, U. Drewke, C., Li, S.-M., Boland, W. and Leistner, E. (2008) Biosynthesis and accumulation of ergoline alkaloids in a mutualistic association between Ipomoea asarifolia (Gonvolvulaceae) and a Clavicip-italean fungus. Plant Physiol, 147,296-305. 

Many species of fungus grow in a close association with the roots of higher plants, in a mutualistic symbiosis known as a mycorrhiza. The mycorrhizal mutualism is very important to the uutritiou of the plant, because of the greatly enhanced access to uutrieuts that is provided, particularly to phosphate. 

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