Biodiversity of mannose-specific lectins within Narcissus species

S. Lopez, C. Codina, E.M. Davidson, D. Stewart, J. Bastida, F. Viladomat

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    7 Citations (Scopus)

    Abstract

    Mannose-specific lectins (MSLs) were isolated from the bulbs of 27 species of wild Spanish Narcissi and compared to the commercially available MSL from daffodil (Narcissus pseudonarcissus, NPA). Molecular weight analysis showed the monomers of all the MSLs were at, or around, 12.5 kD. Haemagglutination assays showed that the MSLs exhibited activities at up to four times greater than that displayed by NPA and other MSLs derived from other species such as Galanthus nivalus (snowdrop) and Allium ursinum (ramson). Elution profiles from ion exchange chromatography exhibited similarities for species within the same taxonomic section suggesting that this method could aid in species classification. Further analysis by isoelectric focusing showed many isolectins are present in vivo and that even within a single peak from ion exchange chromatography there are numerous isolectins present. The basis of the isolectin heterogeneity is suggested to reside in the tetraploidy (sometime triploidy) nature of Narcissus genes.

    Copyright © 2002 American Chemical Society
    Original languageEnglish
    Pages (from-to)2507-2513
    Number of pages7
    JournalJournal of Agricultural and Food Chemistry
    Volume50
    Issue number9
    DOIs
    Publication statusPublished - 2002

    Keywords

    • mannose-specific
    • lectin
    • narcissus
    • HIV
    • isolectin
    • agglutination
    • mannosylation

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