Abstract
The most widespread symbiosis on Earth.
Highlights
The interaction between plant roots and Glomeromycota fungi [1]—arbuscular mycorrhiza (AM)—is probably the most important symbiotic association in nature
It has been suggested that colonization of the land surface was dependent on the fungal symbiont’s ability to forage into the soil for inorganic nutrients and water. This interaction apparently proved to be so successful that even after development of functional plant root structures, it was still retained in most plant families
A surprising promiscuity is observed in this symbiosis since, at least under laboratory conditions, many plant–fungus combinations lead to symbiotic structures
Summary
The interaction between plant roots and Glomeromycota fungi [1]—arbuscular mycorrhiza (AM)—is probably the most important symbiotic association in nature. It has been suggested that colonization of the land surface was dependent on the fungal symbiont’s ability to forage into the soil for inorganic nutrients and water. Two important discoveries demonstrated that the early interaction between plant root and fungus involves mutual release of diffusible signaling molecules.
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