Diana Fakhry Galil Tadrus <br/><br/>
Production of antibiotics by some Egyptian soil streptomycetes /  
 انتاج المضادات الحيوية بواسطة الاستربتوميسيتات المعزولة من الأراضى المصرية 
Diana Fakhry Galil Tadrus ; Supervised Michael Rizkallah Goher , Mahmoud Wafik Sadik 
 - Cairo :   Diana Fakhry Galil Tadrus ,   2020 
 - 76 P. :   charts , facsimiles ;   25cm  
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Microbiology  
<br/><br/> Actinomycetes have got considerable attention worldwide due to the production of many useful bioactive metabolites. In the present study, the antimicrobial potential of novel Actinomycetes has been evaluated by the initial screening of six rhizosphere samples in Egypt. The primary and secondary screening  were  performed against Bacillus cereus (ATCC33018), and E. coli O157 (ATCC93111) as model strains of Gram positive and Gram negative species, respectively. GC-MS analysis of most active actinomycetes extracted secondary metabolites was studied. The major compounds identified by GC-MS analysisinclude2,4-di-tert-butylphenol,3-chloropropionic acid, heptadecyl ester 1,2-benzenedicarboxylicacid,3-nitro, benzenepropanoic acid, 3,5-bis (1,1 dimethylethyl)-4-hydroxy-,octadecyl ester, 1-monopalmitin, 2TMS derivative, 1-docosene, 1-nonadecene and 1-nonacosene 
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<br/><br/><label>Subjects--Index Terms: </label>Actinomycetes Antimicrobial  Secondary metabolites