Xenorhabdus szentirmaii Bakteri Metabolitlerinin Bazı Önemli Bitki Patojeni Funguslara Karşı Antifungal Etkilerinin Belirlenmesi

This study was carried out to determine the antifungal effects of supernatant produced by bacterium Xenorhabdus szentirmaii, which is associated with soil-inhabiting entomopathogenic nematodes, on important plant pathogenic fungi, Fusarium verticilliodes, oxysporum f.sp lycopersici, radicis Botrytis cinerea, Sclerotinia sclerotiorum and Phytophthora nicotianae. The 1, 3, 5 7% concentrations X. szentirmaii bacteria mycelium growth fungal pathogens determined at 7 14 days after application (dap). formation sporangia emergence zoospores from sporangium nicotianae also determined. According results study, highest dose (7% concentration) prevented development all tested pathogens. effect decreased dap against F. lycopersici. S. completely disappeared in whereas continued even B. cinerea P. a concentration highly efficacious within 7%.