Literature DB >> 11157281

Synthesis of a low-molecular-weight form of exopolysaccharide by Bradyrhizobium japonicum USDA 110.

H A Louch1, K J Miller.   

Abstract

A novel extracellular low-molecular-weight polysaccharide was detected as a contaminant within extracellular cyclic beta-1,6-beta-1,3-glucan preparations from Bradyrhizobium japonicum USDA 110 cultures. Compositional analysis, methylation analysis, and nuclear magnetic resonance analysis revealed that this low-molecular-weight polysaccharide was composed of the same pentasaccharide repeating unit previously described for the high-molecular-weight form of the exopolysaccharide (EPS) synthesized by B. japonicum strains. Mass spectrometry analysis indicated that the size of this low-molecular-weight form of EPS was consistent with a dimeric form of the pentasaccharide repeating unit.

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Year:  2001        PMID： 11157281      PMCID： PMC92685          DOI： 10.1128/AEM.67.2.1011-1014.2001

Source DB:  PubMed          Journal:  Appl Environ Microbiol        ISSN： 0099-2240            Impact factor:   4.792


  22 in total

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Journal:  Carbohydr Res       Date:  1995-04-19       Impact factor: 2.104
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  2 in total

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2.  Identification of an Exopolysaccharide Biosynthesis Gene in Bradyrhizobium diazoefficiens USDA110.

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