Impact on arbuscular mycorrhiza formation of pseudomonas strains used as inoculants for biocontrol of soil-borne fungal plant pathogens - Andrade, G.; Azcon-Aguilar, C.; Barea, J. M.; Bianciotto, V.; Bonfante, P.; Dowling, D.; Lohrke, S.; O'Gara, F.