Suberin - a biopolyester forming apoplastic plant interfaces

被引:246
作者
Franke, Rochus [1 ]
Schreiber, Lukas [1 ]
机构
[1] Univ Bonn, Inst Cellular & Mol Bot, D-53115 Bonn, Germany
关键词
D O I
10.1016/j.pbi.2007.04.004
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Suberized cell walls form physiologically important plant-environment interfaces because they act as barriers that limit water and nutrient transport and protect plants from invasion by pathogens. Plants respond to environmental stimuli by modifying the degree of suberization in root cell walls. Salt stress or drought-induced suberization leads to a decrease in radial water transport in roots. Although reinforced, suberized cell walls never act as absolutely impermeable barriers. Deeper insights into the structure and biosynthesis of suberin are required to elucidate what determines the barrier properties. Progress has been obtained from analytical methods that enabled the structural characterization of oligomeric building blocks in suberin, and from the opening of suberin research to molecular genetic approaches by the elucidation of the chemical composition and tissue distribution of suberin in the model species Arabidopsis.
引用
收藏
页码:252 / 259
页数:8
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