New Herbicide-Degrading Rhizosphere Strains Capable of Biocontrol of Phytopathogenic Microorganisms

Biotechnologically significant strains of bacteria of the genus Pseudomonas were isolated from the rhizosphere of wild and cultivated cereals. They were able of both biocontrol of phytopathogenic fungi and bacteria and of degrading the herbicide glyphosate as the sole source of phosphorus (P. chlororaphis subsp. chlororaphis G16, P. chlororaphis subsp. aureofaciens G27, and P. protegens G23-4) and the herbicide Axial as the sole source of carbon (P. chlororaphis G27). These strains exhibited lipolytic and proteolytic activities; P. chlororaphis G27 also produced hydrogen cyanide possessing an antifungal effect. The strains studied in this research can be recommended as a basis for biopreparations for plant protection from phytopathogenic microorganisms, on soils treated with herbicides, in particular.