[Discovery of the relationship between carbohydrate determinants of mollicute glycocalyx and affinity of microorganisms, and conditions for their existence].

: As a result of comparative analysis of interaction intensity of plant lectins, specific to certain monosaccharides with surface glycopolymers of philogenetically close groups of microorganisms--mollicutes and representatives of group Bacillus--Lactobacillus--Streptococcus the authors have established common features: availability of alpha- and beta-D-galactose, sialic acids, L-fucose, N-acetylglucosamine, alpha-N-acetyl-D-galactosamine and alpha-D-mannose in their glycocalyx, that is a phenotypical manifestation of genetic relations between these microorganisms. The dependence between the availability of sialic acids and L-fucose in the composition of terminal structures of microorganisms glycocalyx and their capacity to occupy certain ecological niches have been found out.