SCREENING OF THE ABILITY OF MICROORGANISMS TO BIOFILM FORMATION

Abstract

Biofilms are an important element of microbial communities and perform various functions determined by their composition, structure and environmental conditions in which they are formed. Biofilms can form on various surfaces, such as soil, glass, metal, polymeric materials, and biostructures of living organisms. This process takes place with the participation of many species of microorganisms, in particular, bacteria and fungi, which, in this manner, acquire additional mechanisms for survival, in particular, in the presence of antibiotics. To test the biofilm-forming ability of bacteria (Escherichia coli, Bacillus subtilis, Lactobacillus brevis, Rhodococcus luteus, Staphylococcus albus, Azotobacterchroococcum, Pseudomonas fluorescens, Micrococcus luteus) and yeasts (Candida pseudotropicalis, C. curvata, C.kefyr, C. parapsilosis, C. tenuis, Cryptococcus lactativorus, Cryptococcus laurentii), which were affected by plant extracts, three methods were used. The ability of these microorganisms to form biofilms was not detected.