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. 1991 Dec;97(4):1456–1461. doi: 10.1104/pp.97.4.1456

Cell Wall Metabolism in Ripening Fruit 1

V. Analysis of Cell Wall Synthesis in Ripening Tomato Pericarp Tissue Using a d-[U-13C]Glucose Tracer and Gas Chromatography-Mass Spectrometry

L Carl Greve 1, John M Labavitch 1
PMCID: PMC1081186  PMID: 16668571

Abstract

A gas chromatographic-mass spectrometric technique utilizing d-[U-13C]glucose as a density label tracer was used to follow the synthesis of cell wall polysaccharides in pericarp discs that were excised from mature green tomato fruit (Lycopersicon esculentum) and allowed to ripen in culture. The biosynthetic capacity of discs from four different maturity stages was examined. Label was differentially incorporated into wall polysaccharides as the discs matured, indicating a change in the nature of wall polymers being synthesized. These differential rates of incorporation are consistent with descriptions of ripening-related cell wall compositional changes previously reported by other authors. Specific changes in wall biosynthesis noted include increased incorporation of xylosyl and mannosyl residues into hemicellulosic cell wall fractions as the discs mature and decreased incorporation of galactosyl residues into chelator-soluble pectins.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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