Evaluation of the effect of ecologically hazardous pollutants on the bacteriolytic activity of the predatory bacterium Bdellovibrio

We studied the effect of various concentrations of ecologically hazardous p ollutants, urea, phenol, diuron, and cadmium ions, on the physiological act ivity and survival of the parasitic bacterium Bdellovibrio. Experiments sho wed that the survival of bdellovibrios in the presence of the pollutants wa s two times higher when they were cultivated on agar than when they were cu ltivated in liquid medium. The data obtained art: in agreement with the rec ent concept of the surface-associated state as a survival strategy of bdell ovibrios in various ecosystems.