Structure of the O-polysaccharide of the lipopolysaccharide of Azospirillum irakense KBC1

Carbohydr Res. 2004 Jul 12;339(10):1813-6. doi: 10.1016/j.carres.2004.05.013.

Abstract

The O-polysaccharide was isolated from the lipopolysaccharide of the plant-growth-promoting bacterium Azospirillum irakense KBC1 and studied by sugar and methylation analyses, Smith degradation and 1H and 13C NMR spectroscopy, including 1H, 13C HSQC and NOESY experiments for linkage and sequence analysis. The following structure of the branched hexasaccharide repeating unit of the O-polysaccharide with an unusually long side chain was established: [carbohydrate structure: see text].

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antigens / chemistry
  • Azospirillum / chemistry*
  • Carbohydrate Conformation
  • Carbohydrate Sequence
  • Carbohydrates / chemistry
  • Hydrogen
  • Lipopolysaccharides / chemistry*
  • Magnetic Resonance Spectroscopy
  • Methylation
  • Models, Chemical
  • Molecular Sequence Data
  • O Antigens / chemistry
  • Polysaccharides / chemistry

Substances

  • Antigens
  • Carbohydrates
  • Lipopolysaccharides
  • O Antigens
  • Polysaccharides
  • Hydrogen