We used conventional plant pots and compartmented rhizoboxes to investigate the effects of two arbuscular mycorrhizal fungi on uptake of arsenate by Medicago truncatula. In the pot experiment we inoculated the host plant with Glomus mosseae and in the rhizobox experiment we compared G mosseae with Glomus intraradices.Hyphal density was unaffected by As even at the highest application rate of 200 mg kg-1 As to the soil which strongly depressed the biomass of mycorrhizal plants and non-myconhizal controls. My...