Xyloglucan: A metabolically dynamic Polysaccharide

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Exciting claims have recently been made about the biological roles of xyloglucan. Here I briefly review a few of the ideas that have attracted interest and suggest some areas that require further study. Xyloglucan is a hemicellulosic polysaccharide found in the primary cell walls of all higher plants(l-3). It has been characterised from Dicotyledons[e.g. hypocotyls of Phaseo-lus(4), fruits of Olea(5), Malus{6) and Phaseolus{7, 8), “fibres”of Gossypium(9), tubers of Solanum(lO), embryonic axes of Lactuca(11), and cell cultures of Acer(12), Rosa{13, 14), Glycine{15) waAPopulus(16), Monocotyledons[e.g. bulbs of Allium{11, 19), endosperm of Oryza{11), seedlings of 0ryza{20) and Hordeum{2l), shoots of Bambusa(22), and cell cultures of Oryza(23)], and Gymnosperms[e.g. cell cultures of Pseudotsuga(2A)]. Xyloglucan may make up 20-30% of the dry weight of the primary wall; amounts are often lower.

Original languageEnglish
Pages (from-to)279-289
Number of pages11
JournalTrends in Glycoscience and Glycotechnology
Issue number17
Publication statusPublished - 1 Jan 1992


  • auxin
  • cell wall
  • cellulose
  • transglycosylation
  • xyloglucan

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