The role of the secondary cell wall in plant resistance to pathogens.
The role of the secondary cell wall in plant resistance to pathogens.
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DOI：
10.3389/fpls.2014.00358
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发表时间：
2014
影响因子：
5.6
通讯作者：
Molina A
中科院分区：
文献类型：
--
作者：
Miedes E;Vanholme R;Boerjan W;Molina A
植物对病原体的抗性依赖于一个复杂的构成性和可诱导性防御屏障网络。植物细胞壁是病原体成功定植植物组织所需克服的障碍之一。植物细胞壁是一种被动屏障的传统观点已经演变为一种概念，认为细胞壁是一种动态结构，可以调节构成性和诱导性防御机制，并且是触发免疫反应的信号分子的来源。植物的次生细胞壁也代表了生产生物燃料和生物材料的碳中性原料（木质纤维素生物质）。因此，改善二次细胞壁特性的工程植物是一种有趣的策略，可以缓解生物炼制中木质纤维素生物质的加工。然而，细胞壁完整性的改变通过破坏其生物合成或重塑所需的蛋白质可能会影响植物对病原体的抗性。本文综述了植物细胞壁在病原菌抗性中的作用，重点介绍了木质素在这一生物学过程中的作用。
Plant resistance to pathogens relies on a complex network of constitutive and inducible defensive barriers. The plant cell wall is one of the barriers that pathogens need to overcome to successfully colonize plant tissues. The traditional view of the plant cell wall as a passive barrier has evolved to a concept that considers the wall as a dynamic structure that regulates both constitutive and inducible defense mechanisms, and as a source of signaling molecules that trigger immune responses. The secondary cell walls of plants also represent a carbon-neutral feedstock (lignocellulosic biomass) for the production of biofuels and biomaterials. Therefore, engineering plants with improved secondary cell wall characteristics is an interesting strategy to ease the processing of lignocellulosic biomass in the biorefinery. However, modification of the integrity of the cell wall by impairment of proteins required for its biosynthesis or remodeling may impact the plants resistance to pathogens. This review summarizes our understanding of the role of the plant cell wall in pathogen resistance with a focus on the contribution of lignin to this biological process.
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