Receptor site on clover and alfalfa roots for Rhizobium.

  title={Receptor site on clover and alfalfa roots for Rhizobium.},
  author={Frank B. Dazzo and Winston J. Brill},
  journal={Applied and environmental microbiology},
  volume={33 1},
Sites on white clover and alfalfa roots that bind Rhizobium trifolii and R. meliloti capsular polysaccharides, respectively, were examined by fluorescence microscopy. Fluorescein isothiocyanate-labeled capsular material from R. trifolii bound specifically to root hairs of clover but not alfalfa. Binding was most intense at the root hair tips. Treatment of clover roots with 2-deoxyglucose (2-dG) prevented binding of R. trifolii capsular material to the roots. The sugar 2-dG enhanced the elution… CONTINUE READING

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