What advantage does glomus fungi derives from mycorrhiza (symbiotic association)?
The plant supplies the mycorrhizal fungi, e.g. glomus spp with carbohydrates (usually glucose) derived from photoassimilation. But also supply of growth stimulators (volatile terpenes), and vitamins (thiamine or its precursors, pyrimidine or thiazolium, biotin, pantothenic acid, nicotine acid, etc.) is reported. Many fungi are heterotrophic regarding vitamins, and are therefore dependent on a supply by the plant.
