Characterization of the Adhesive Properties of Bacillus Intestinalis GM2

In this paper, we present the data on the properties of the probiotic strain Bacillus intestinalis GM2 related to adhesion, auto-, and coaggregation. GM2 exhibits a strong autoaggregation phenotype. The autoaggregation ability of GM2 did not change after trypsin treatment but was reduced under the influence of extracellular culture metabolites. Coaggregation of probiotic strains with pathogens is one of the mechanisms of displacement of pathogens from the intestinal microbiota. It was shown that the GM2 strain exhibits the ability to coaggregate with tested strains of Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, and Bacillus cereus. The studied properties of bacilli can be useful for the creation of new probiotics for poultry farming.