Arabinogalactan Proteins in Root and Pollen-tube Cells: Distribution and Functional Aspects

Overview

Journal Ann Bot

Publisher Oxford University Press

Specialty Biology

Date 2012 Jul 13

PMID 22786747

Citations 67

Authors

Eric Nguema-Ona

Silvia Coimbra

Maite Vicre-Gibouin

Jean-Claude Mollet

Azeddine Driouich

Affiliations

Soon will be listed here.

Abstract

Background: Arabinogalactan proteins (AGPs) are complex proteoglycans of the cell wall found in the entire plant kingdom and in almost all plant organs. AGPs encompass a large group of heavily glycosylated cell-wall proteins which share common features, including the presence of glycan chains especially enriched in arabinose and galactose and a protein backbone particularly rich in hydroxyproline residues. However, AGPs also exhibit strong heterogeneities among their members in various plant species. AGP ubiquity in plants suggests these proteoglycans are fundamental players for plant survival and development.

Scope: In this review, we first present an overview of current knowledge and specific features of AGPs. A section devoted to major tools used to study AGPs is also presented. We then discuss the distribution of AGPs as well as various aspects of their functional properties in root tissues and pollen tubes. This review also suggests novel directions of research on the role of AGPs in the biology of roots and pollen tubes.

Citing Articles

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