Structure of the O-specific polysaccharide of the lipopolysaccharide of Azospirillum brasilense Sp245

Carbohydr Res. 2002 Apr 30;337(9):869-72. doi: 10.1016/s0008-6215(02)00061-7.

Abstract

An O-specific polysaccharide was isolated from the lipopolysaccharide of a plant-growth-promoting bacterium Azospirillum brasilense Sp245 and studied by sugar analyses along with one- and two-dimensional 1H and 13C NMR spectroscopy, including NOESY. The polysaccharide was found to be a new rhamnan with a pentasaccharide repeating unit having the following structure:-->2)-beta-D-Rhap-(1-->3)-alpha-D-Rhap-(1-->3)-alpha-D-Rhap-(1-->2)-alpha-D-Rhap-(1-->2)-alpha-D-Rhap-(1-->

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Azospirillum brasilense / chemistry*
  • Carbohydrate Sequence
  • Lipopolysaccharides / chemistry*
  • Lipopolysaccharides / isolation & purification
  • Molecular Sequence Data
  • Nuclear Magnetic Resonance, Biomolecular
  • O Antigens / analysis
  • O Antigens / chemistry*
  • O Antigens / isolation & purification

Substances

  • Lipopolysaccharides
  • O Antigens