ISSN:
1432-072X
Keywords:
Rhodopseudomonas capsulata
;
Capsule
;
Slime
;
Polysaccharides
;
External layers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Two different acidic polysaccharides (I and II) were detected in the external cell envelope layers (slime and capsule) of Rhodopseudomonas capsulata Sp11. Polysaccharide I contains rhamnose, fucose, glucosamine and an unknown acidic sugar, it represents the slime material of the strain. Polysaccharide II contains rhamnose, galactose, 3-amino-3,6-dideoxygalactose, an unknown amino sugar and galacturonic acid, it represents very likely the capsule of R. capsulata Sp11. Polysaccharide I has a serological specificity different from that of polysaccharide II as shown by immunoprecipitation using antisera against living cells. Polysaccharide II, but not polysaccharide I, reacts in antiserum against heattreated cells (100°C, 2.5 h). Whole cells are agglutinated in the antisera against living but not in those against heattreated cells.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00425219
