<span style="mso-fareast-font-family: SimSun;">The Mechanism behind Arbuscular Mycorrhizal Fungi Aiding Growth and Development and Inhibiting Root Rot in <i>Lycium barbaru</i>
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To investigate the potential role of arbuscular mycorrhizal fungi (AMF) in the resistance of Lycium barbarum to disease stress, two types of AMF, Funneliformis mosseae and Rhizophagus intraradices, were selected as materials. Lycium barbarum was inoculated with AMF and pathogenic bacteria in potting soil under controlled conditions, and we analyzed the antioxidant capacity of the fungi against root rot and changes in disease-process-related protein activities. In addition, we performed transcriptome analysis to explore the physiological and molecular changes in AMF in the prevention and control of root rot in L. barbarum ‘Ningqi No.1’ cultivar. The results show that AMF can promote the growth and development of L. barbarum plants while also increasing antioxidant enzyme and disease-resistant protease activity. The ‘Ningqi No.1’–AMF symbiont triggered several key biological pathways, including the peroxisomal signaling pathway, after F. oxysporum infestation. In conclusion, AMF can prevent root rot in L. barbarum, providing valuable evidence that AMF symbiotically improves the ability of L. barbarum to resist root rot through its molecular mechanism.