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Curr Opin Plant Biol. 2006 Dec;9(6):621-30. Epub 2006 Oct 2.

Biosynthesis of plant cell wall polysaccharides - a complex process.

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MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.


Cellulose, a major component of plant cell walls, is made by dynamic complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these complex processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.

[Indexed for MEDLINE]

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