Mycorrhizal symbiosis is the oldest and most widespread fungus-plant association in the world; it is even present in arid and degraded systems and soils altered by human activity, including soils contaminated with industrial residues Finlay, 2008.
La simbiosis micorrícica es la asociación hongo-planta más antigua y extendida del mundo, presente incluso en ecosistemas áridos, degradados y/o alterados por la actividad humana, incluidos los suelos altamente contaminados con residuos industriales Finlay, 2008.