Antifungal Activity of Endophyte Cultures of Morus alba L. against Phytopathogenic Fungi

Li Ping Zheng; Zhen Zhang; Li Qun Xie; Hui Yan Yuan; Yu Qing Zhang

doi:10.4028/www.scientific.net/AMR.641-642.615

Paper Titles

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Analysis of Synonymous Codon Usage Bias in D15 Gene Encoded Surface Antigen of Riemerella Anatipestifer
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Analysis of Synonymous Codon Usage in the US5 Gene of Duck Plague Virus
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Antifungal Activity of Endophyte Cultures of Morus alba L. against Phytopathogenic Fungi
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Application Research of Biodegradable Base Oil in the Green Metal Cutting Fluid
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Analysis of Flora Distribution and Drug Resistance in Sputum Culture from Patients with Lung Cancer
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Bioinformatics Analysis and Characteristics of Capsular Exopolysaccharide Family Gene and its Encoding Protein in Riemerella Anatipestifer
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Bioinformatics Analysis and Characteristics of UL17 Protein Encoded by the UL17 Gene from Duck Enteritis Virus
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Antifungal Activity of Endophyte Cultures of Morus alba L. against Phytopathogenic Fungi

Abstract:

A total of 106 strains of endophytic fungi were isolated from mulberry tree. 86 strains of the total isolates belonged to 18 genera. The dominant species were Fusarium spp. (22.6%) and Alternaria spp. (15.1%). The isolation frequency of endophytes was around 47, 38 and 15%, respectively to roots, branches and leaves. About 54% of the isolates could produce antifungal metabolites against at least one plant pathogenic fungi. Endophytic Aspergillus sp. A204, Colletotrichum sp. C103 and Penicillium sp. P306 showed broader antifungal spectrum. The strain C103 showed stronger potential with growth inhibition rates higher than 50% against all of the selected phytopathogens. The minimum inhibition concentrations (MICs) of the EtOAc extract of C103 culture against Botrytis cinerea, Fusarium oxysporum, Myrothecium rorideum was 1.5, 0.5 and 0.5 mg/mL, respectively, indicating that endophytic fungi may play an important role in protection of mulberry tree from disease as well as an excellent resource for natural antifungal compounds.