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  • Title: Structure of the polysaccharides from the lipopolysaccharide of Azospirillum brasilense Jm125A2.
    Author: Sigida EN, Fedonenko YP, Shashkov AS, Zdorovenko EL, Konnova SA, Ignatov VV, Knirel YA.
    Journal: Carbohydr Res; 2015 Oct 30; 416():37-40. PubMed ID: 26343325.
    Abstract:
    Two polysaccharides were obtained by mild acid degradation of the lipopolysaccharide of associative nitrogen-fixing bacteria Azospirillum brasilense Jm125A2 isolated from the rhizosphere of a pearl millet. The following structures of the polysaccharides were established by sugar and methylation analyses, Smith degradation, and (1)H and (13)C NMR spectroscopy: [Formula: see text] Structure 1 has been reported earlier for a polysaccharide from A. brasilense S17 (Fedonenko YP, Konnova ON, Zdorovenko EL, Konnova SA, Zatonsky GV, Shaskov AS, Ignatov VV, Knirel YA. Carbohydr Res 2008;343:810-6), whereas to our knowledge structure 2 has not been hitherto found in bacterial polysaccharides.
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