Phytoremediation of aged-hydrocarbon polluted soils may be improved using arbuscular mycorrhizal fungi.
Inoculation of wheat with R. irregularis improved dissipation of PAH and alkanes.
Dissipation resulted from adsorption and bioaccumulation in wheat and mainly from biodegradation in soil.
Biodegradation was due to a stimulation of rhizosphere bacteria and an induction of root peroxidase.