[The variability of a Pseudomonas aeruginosa population in the phase of parasitism on Tetrahymena pyriformis].

Types of interaction between P. aeruginosa and T. pyriformis have been studied. The study has revealed that phagocytizing protozoa are killed by P. aeruginosa in the process of their joint cultivation. The data obtained in this study indicate that in the process of interaction of these species phagocytosis-resistant cells are selected from heterogeneous microbial population. The use of this model is believed to be promising in the study of the fate of P. aeruginosa in abiotic and biotic environment.