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  • Title: Substitution of L-fucose by L-galactose in cell walls of Arabidopsis mur1.
    Author: Zablackis E, York WS, Pauly M, Hantus S, Reiter WD, Chapple CC, Albersheim P, Darvill A.
    Journal: Science; 1996 Jun 21; 272(5269):1808-10. PubMed ID: 8650583.
    Abstract:
    An Arabidopsis thaliana mutant (mur1) has less than 2 percent of the normal amounts of L-fucose in the primary cell walls of aerial portions of the plant. The survival of mur1 plants challenged the hypothesis that fucose is a required component of biologically active oligosaccharides derived from cell wall xyloglucan. However, the replacement of L-fucose (that is, 6-deoxy-L-galactose) by L-galactose does not detectably alter the biological activity of the oligosaccharides derived from xyloglucan. Thus, essential structural and conformational features of xyloglucan and xyloglucan-derived oligosaccharides are retained when L-galactose replaces L-fucose.
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