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A novel highly unsaturated fatty acid moiety of lipo-oligosaccharide signals determines host specificity of Rhizobium

Nature volume 354, pages 125130 (14 November 1991) | Download Citation

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Abstract

In Rhizobium leguminosarum biovar viciae, the nodABCand nodFEL operons are involved in the production of lipo-oligosaccharide signals which mediate host specificity. The structure of these metabolites and those produced in nod mutants links the nodE and nodi genes to specific chemical features of the signal molecules. A nodE-determined, highly unsaturated fatty acid and a nod-determined O-acetyl substituent are essential for the ability of the signals to induce nodule meristems on the host plant Vicia sativa.

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Author information

Author notes

    • Douglas M. Sheeley
    •  & Vernon N. Reinhold

    Harvard School of Public Health, Department of Nutrition, Boston, Massachusetts 02115, USA

    • John Glushka
    •  & William S. York

    Complex Carbohydrate Research Center, 220 Riverbend Road, Athens, Georgia 30602, USA

    • Eugene P. Kennedy

    Harvard Medical School, Department of Biological Chemistry and Molecular Pharmacology, Boston, Massachusetts 02115, USA

Affiliations

  1. Leiden University, Department of Plant Molecular Biology, Nonnensteeg 3, 2311 VJ Leiden, The Netherlands

    • Herman P. Spaink
    • , Douglas M. Sheeley
    • , Anton A. N. van Brussel
    • , John Glushka
    • , William S. York
    • , Teun Tak
    • , Otto Geiger
    • , Eugene P. Kennedy
    • , Vernon N. Reinhold
    •  & Ben J. J. Lugtenberg

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https://doi.org/10.1038/354125a0

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