The arbuscular mycorrhizal fungus Rhizophagus intraradices reduces the root rot caused by Fusarium pseudograminearum in wheat

摘要: Abstract Root colonization with arbuscular mycorrhizal fungi (AMF) improves plant tolerance against soil-borne pathogens. The purpose of the present study was to explore efficacy AMF Rhizophagus intraradices (N.C. Schenck & G.S. Sm.) as a biocontrol agent Fusarium pseudograminearum (O'Donnell and Aoki) in wheat plants grown under greenhouse conditions. Parameters here analyzed included disease severity, morphological features, structures within roots, oxidative stress levels. inoculation significantly counteracted on negative effects pathogen F. parameters such aerial root biomass, number spikes height. These results suggest that considerably reduced population density (75.7%) severity (39%) compared control. In addition, when pathogen-infected plants, AMF-inoculated exhibited significant increases activity antioxidant enzymes, along decrease levels lipid peroxidation. This is first work show R. plays role infection by maintaining redox balance competing for sites colonize.