ANTIGENIC POLYSACCHARIDES OF BACTERIA .39 . STRUCTURE OF O-SPECIFIC POLYSACCHARIDES OF PSEUDOMONAS-CEPACIA SEROGROUP-C, SEROGROUP-I, SEROGROUP-01, AND SEROGROUP-04

Like some Pseudomonas cepacia serogroups studied earlier, serogroups C , I (Nakamura), O1 and O4 (Heidt) are characterized by the presence of at least two structurally different O-antigenic polysaccharide chains in cell-wall lipopolysaccharides. On the basis of acid hydrolysis, me thylation, H-1 and C-13-NMR spectroscopy, including computer-assisted C-13-NMR-based analysis, the complete structures of the predominant po lysaccharides of serogroups I (I), C and O4 (III) and the minor polysa ccharides of serogroups I (II) and O1 (V) were established, and the st ructure of the predominant polysaccharide of serogroup O1 (IV) establi shed earlier (Cox A. D., Wilkinson S. G.//Carbohydr. Res. 1990. V. 195 . No 2. P. 295-301) was confirmed.