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PMID: 11554482 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Review

Pectin: cell biology and prospects for functional analysis.

Plant molecular biology ·Vol. 47 ·No. 1-2 ·2001-09-00 ·Pages 9-27

Willats WG, McCartney L, Mackie W, Knox JP

Abstract

Pectin is a major component of primary cell walls of all land plants and encompasses a range of galacturonic acid-rich polysaccharides. Three major pectic polysaccharides (homogalacturonan, rhamnogalacturonan-I and rhamnogalacturonan-II) are thought to occur in all primary cell walls. This review surveys what is known about the structure and function of these pectin domains. The high degree of structural complexity and heterogeneity of the pectic matrix is produced both during biosynthesis in the endomembrane system and as a result of the action of an array of wall-based pectin-modifying enzymes. Recent developments in analytical techniques and in the generation of anti-pectin probes have begun to place the structural complexity of pectin in cell biological and developmental contexts. The in muro de-methyl-esterification of homogalacturonan by pectin methyl esterases is emerging as a key process for the local modulation of matrix properties. Rhamnogalacturonan-I comprises a highly diverse population of spatially and developmentally regulated polymers, whereas rhamnogalacturonan-II appears to be a highly conserved and stable pectic domain. Current knowledge of biosynthetic enzymes, plant and microbial pectinases and the interactions of pectin with other cell wall components and the impact of molecular genetic approaches are reviewed in terms of the functional analysis of pectic polysaccharides in plant growth and development.

MeSH Terms
Cell Wall/metabolism Gene Expression Regulation, Enzymologic Gene Expression Regulation, Plant Molecular Conformation Pectins/chemistry,metabolism Plants/genetics,metabolism Polygalacturonase/genetics,metabolism
Chemicals
Pectins Polygalacturonase polygalacturonic acid
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Willats W G
Centre for Plant Sciences, University of Leeds, UK.
McCartney L
Mackie W
Knox J P
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Article Info
Journal
Plant molecular biology
Abbr.
Plant Mol Biol
ISSN
0167-4412
Published
2001-09-00
Pages
9-27
Language
English
Region
Netherlands
NLM ID
9106343
Subset
IM
External Links
PubMed source View journal details
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