Protective role of plant growth-promoting fungi Aspergillus chevalieri OP593083 and Aspergillus egyptiacus OP593080 as biocontrol approach against Alternaria leaf spot disease of Vicia faba plant

• DOI: 10.1007/s13399-023-04510-4
• Publication Date: 2023-07-07T02:01:47Z
• Authors: Ghadir E. Daigham; Amira Y. Mahfouz; Amer M. Abdelaziz; Mohamed M. Nofel; Mohamed S. Attia
• Keywords: Alternaria solani; Phyllosphere

Abstract Crop loss brought on by phytopathogens is a significant issue that affects the entire world. Synthetic pesticides have been used for years to prevent economic losses caused phytopathogens, raising severe worries about environment and public health. Therefore, today, there growing interest in using helpful microorganisms control plant pathogens. In this way, Aspergillus chevalieri AGH-1 OP593083 egyptiacus AGH-4 OP593080 isolated from wheat rhizosphere applied as growth-promoting fungi (PGPF) combating early blight disease Alternaria solani ( A. ) inducing defense system growth promotional strategies Vicia faba . Two milligrams per milliliter ethyl acetate crude extracts of demonstrated effective antifungal efficacy against with an inhibition zone 18 16 mm respectively compared 20 attained fluconazole positive control. Moreover, minimum inhibitory concentrations (MIC) were (0.25 0.5 mg/ml) respectively. Data showed was best isolate producing indole acetic acid (IAA) siderophores (+ + +) followed +). Also, isolates capable phosphate solubilization soil +), It interesting PGPF used, whether single or mixed, improvement all yield well photosynthetic pigments played important role improving immunity increasing phenol, proline, antioxidant enzymes (POD PPO) activities, reducing oxidative stress MDA H 2 O We can conclude are considered eco-friendly safe strong inducers alternatives chemical preserve plant, soil, human