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- W2360273003 abstract "[Objective]To understand the antagonism of endophytic fungi from cucurbits against common soil-borne phytopathogens. [Method]By using the dual culture method,we investigated the antagonism of 461 endophytic fungal strains isolated from different tissues of cucurbits against pathogens Fusarium oxysporum f. sp. cucumerinum,Rhizoctonia solani and Sclerotinia sclerotiorum,respectively. The configuration and growth status of the colonies,inhibition bands and their widths were observed and recorded. The inhibition rate of colonial growth of pathogenic fungi was calculated. [Result]The antagonism of the endophytic fungi against the tested pathogens showed three types: antibiosis,competition for substrate,and mycoparasitism. Among 461 endophytic fungal isolates,there were 13 isolates showed antagonism against F. oxysporum f. sp.cucumerinum,25 isolates against R. solani,and 64 isolates against S. sclerotiorum,accounted for 2. 8%,5. 4% and 13. 9%,respectively. The isolate F30 produced the widest inhibition band,19 mm in width,against F. oxysporum f. sp. cucumerinum. The isolate JCL24 produced the widest inhibition band,11. 3 mm in width,against R. solani. The isolate F94 produced the widest inhibition band,14. 3 mm in width,against S.sclerotiorum. Among the isolates produced the colonial growth inhibition rate of 70% or above against the pathogen tested,there were 3 isolates,belonging to Nigrospora,Penicillium and Rhizoctonia,respectively,against F. oxysporum f. sp. cucumerinum; there were 11 isolates,belonging to Alternaria,Apiospora,Bipolaris,Colletotrichum,Exserohilum and Fusarium,respectively,against R. solani; there were 17 isolates,belonging to Fusarium,against S. sclerotiorum. [Conclusion]Some of the endophytic fungal isolates from cucurbits possess antagonistic activity against soilborne phytopathogens. The colonial growth of the pathogenic fungi was inhibited by means of antibiosis mainly,and competition for substrate and mycoparasitism in some cases. A few isolates showed strong antagonistic activity and may have the potential for biocontrol of cucurbit diseases." @default.
- W2360273003 created "2016-06-24" @default.
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- W2360273003 date "2013-01-01" @default.
- W2360273003 modified "2023-09-24" @default.
- W2360273003 title "Antagonism of Endophytic Fungi from Cucurbits against Three Soil-borne Phytopathogens" @default.
- W2360273003 hasPublicationYear "2013" @default.
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