Hegazy, M., El Shazly, A., Mohamed, A., Hassan, M. (2019). Impact of certain endophytic fungi as biocontrol agents against sesame wilt disease. test, 2(2), 55-68. doi: 10.21608/aasj.2019.25059.1021
M. G. A. Hegazy; A. M. El Shazly; A. A. Mohamed; M. Hassan. "Impact of certain endophytic fungi as biocontrol agents against sesame wilt disease". test, 2, 2, 2019, 55-68. doi: 10.21608/aasj.2019.25059.1021
Hegazy, M., El Shazly, A., Mohamed, A., Hassan, M. (2019). 'Impact of certain endophytic fungi as biocontrol agents against sesame wilt disease', test, 2(2), pp. 55-68. doi: 10.21608/aasj.2019.25059.1021
Hegazy, M., El Shazly, A., Mohamed, A., Hassan, M. Impact of certain endophytic fungi as biocontrol agents against sesame wilt disease. test, 2019; 2(2): 55-68. doi: 10.21608/aasj.2019.25059.1021

Impact of certain endophytic fungi as biocontrol agents against sesame wilt disease

Archives of Agriculture Sciences Journal
Article 6, Volume 2, Issue 2, August 2019, Pages 55-68    PDF (437.72 K)
Document Type: Research article
DOI: 10.21608/aasj.2019.25059.1021
Authors
M. G. A. Hegazy* 1; A. M. El Shazly2; A. A. Mohamed1; M. Hassan3
1Agricultural Botany Department, Faculty of Agriculture, Al-Azhar University, 71524 Assiut, Egypt
2Agricultural Botany Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
3Plant Pathology Department, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt
Abstract
This study was conducted to evaluate the ability of some endophytic fungi, as biocontrol agents against sesame wilt caused by Fusarium oxysporum f. sp. sesame. Eleven fungal species belong to genus Fusarium was isolated from different localities in Sohag and Assiut governorates. All isolated species proved to be pathogenic on Giza-32 sesame cultivar. Twelve endophytic fungi isolates were isolated from some parts of various plants. The endophytic fungi isolates were tested for antagonistic activity by the dual culture and culture filtrate techniques. All endophytic fungal isolates were showed antagonistic activity againstthe causal pathogen in vitro. The endophytic Aspergillus niger was more antagonistic than other tested isolates toward the causal pathogenfollowed by A. clavatus, Penicillium chrysogenum and P. crustosum. All the tested fungal culture filtrates (FCF) were significantly affected the growth of the causal pathogen. FCF of Aspergillus terreusisolate at 20 % concentration displayed the greatest inhibitory action to the pathogen mycelia growth. Single application with endophytic fungi or combined with Trichoderma sp. were significantly deceased the disease severity (%) and increased the plant growth parameters such as shoot length, shoot weight, root weight and number of pods.
Keywords
Endophytic fungi; Fusarium oxysporum f.sp. sesame; antifungal activity; Aspergillus spp.; Trichoderma spp.
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