Cell-associated oligosaccharides of Bradyrhizobium spp.

Academic Article

Abstract

  • We report the initial characterization of the cell-associated oligosaccharides produced by four Bradyrhizobium strains: Bradyrhizobium japonicum USDA 110, USDA 94, and ATCC 10324 and Bradyrhizobium sp. strain 32H1. The cell-associated oligosaccharides of these strains were found to be composed solely of glucose and were predominantly smaller than the cyclic beta-1,2-glucans produced by Agrobacterium and Rhizobium species. Linkage studies and nuclear magnetic resonance analyses demonstrated that the bradyrhizobial glucans are linked primarily by beta-1,6 and beta-1,3 glycosidic bonds. Thus, the bradyrhizobia appear to synthesize cell-associated oligosaccharides of structural character substantially different from that of the cyclic beta-1,2-glucans produced by Agrobacterium and Rhizobium species.
  • Authors

  • Miller, KJ
  • Gore, RS
  • Johnson, R
  • Benesi, AJ
  • Reinhold, Vernon
  • Status

    Publication Date

  • January 1990
  • Published In

    Keywords

  • Glucans
  • Magnetic Resonance Spectroscopy
  • Oligosaccharides
  • Rhizobiaceae
  • Rhizobium
  • Digital Object Identifier (doi)

    Start Page

  • 136
  • End Page

  • 142
  • Volume

  • 172
  • Issue

  • 1