TY - BOOK AU - Omama Mohamed Alhaj Saleh AU - Hussein Emam Makboul , AU - Mohamed Nabil Omar , AU - Nadia Fahmi Amin , TI - Studies on some microorganisms as biological control agents for potato brown rot / PY - 2014/// CY - Cairo : PB - Omama Mohamed Alhaj Saleh , KW - Bio control agents KW - PGPR KW - Ralstonia solanacearum N1 - Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Microbiology; Issued also as CD N2 - Laboratory and greenhouse experiments (using sterile and non- sterile soil) were conducted at the potato brown rot project (PBRP), Giza, Egypt to evaluate the ability of some strains of plant growth promoting rhizobacteria (PGPR) to control the pathogen microorganism causing potato brown rot disease. Two bacterial strains (Ralstonia solanacearum) were isolated from naturally infected potato tubers and identified by PCR and Real - time PCR technique as Ralstonia solanacearum race 3 biovar 2. Results of the antagonistic activity of the tested bio - agents against Ralstonia solanacearum showed that all of the tested PGPR strains exhibited variable antibacterial effects against ralstonia solanacearum UR - http://172.23.153.220/th.pdf ER -