INFLUENCE OF TECHNOGENIC POLLUTION ON SPECIES COMPOSITION AND PECULIARITIES OF BIOFILM FORMATION OF STAPHYLOCOCCI ISOLATED FROM BACTERIA CARRIERS
The objective of the work was to study the species composition and film forming ability of staphylococci colonizing the nasal and throat cavities in children living in ecologically clean (settlement Sylva) and industrial (town Chusovoi, near a large metallurgical plant ) regions of the Perm Territory. It was shown that in the children from the ecologically unharmed region (n = 31, the nasal and throat cavities were colonized by staphylococci various in their species composition. Golden staphylococci were detected rarely as compared to the study group. In contrast, in the study group (the children living in the region polluted by the metallurgical plant emissions, n = 23), predominantly two Staphylococci species - S. epidermidis and S. aureus were detected in the mentioned biotopes. All strains of staphylococci of different species isolated from the children in the study group were characterized by more pronounced abilities to form biofilms which reached the highest values among the representatives of KOS.