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Twenty five Actinomycetes species were isolated from thirty samples of soil collected from Tuti Island farms (Central Sudan) and Blue Nile bank using Starch Casein agar medium. Three genera were isolated, nineteen different species were belonging to Streptomyces, five species belong to Actinomyces and one species belong to Arachnia formerly Actinomyces. These species were screened and evaluated for their antifungal activity against Fusarium oxysporum f.sp.vasinfectum. The results showed that Fusarium oxysporum f.sp.vasinfectum has a resistance to the antagonizing effect, and it has an ability to destruct the secondary metabolites. The crude extracts of fermented actinomycetal broth were analyzed also by thin layer chromatography (TLC) technique and seventeen different antifungal of Actinomycetes were characterized.
[Shami E. A. Bakhei and A. M. Saadab (2014); Antagonistic affects of Actinomycetes isolated from Tuti island farms (Central Sudan) against Fusarium oxysporum f.sp.vasinfectum a phytopathogenic fungus Int. J. of Adv. Res. 2 (2). 0] (ISSN 2320-5407). www.journalijar.com
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