PLANT CELL WALL CROSS LINKING VIA HYDROXYCINNAMIC ACIDS

通过羟基肉桂酸交联植物细胞壁

• 批准号: 6309207
• 负责人: JOHN RALPH
• 金额: $ 0.75万
• 依托单位: UNIVERSITY OF WISCONSIN-MADISON
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-04-15 至 2005-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6309207
• 关键词: biomedical resource; nuclear magnetic resonance spectroscopy; plants

Plant cell wall cross-linking is an important mechanism for regulating plant extension and providing a solid, dimensionally stable, polymer network. Ferulate, in arabinoxylan-ferulate esters, will dimerize via radical coupling mechanisms to cross-link wall polysaccharides. Ferulate and diferulates will also actively incorporate into lignins via radical processes, effecting polysaccharide-lignin cross-linking. Determining the sites of lignin attachment helps delineate diverse mechanisms and establishes the biochemistry of attachment. Recent NMR spectra provide compelling evidence for the role of ferulates as nucleation sites or initiation sites for lignification. However, detectability (and obtaining diagnostic correlational data) are difficult for these important but minor components of the plant cell wall.

植物细胞壁交联是重要机制 调节植物扩展并提供固体尺寸 稳定的聚合物网络。 在阿拉伯素氧化酯中禁止酯， 将通过自由基耦合机制二聚到交联壁 多糖。 禁止和差异也将积极 通过激进过程掺入木质素中，影响 多糖林蛋白交联。 确定木质素的位置 依恋有助于描述各种机制，并建立 依恋的生物化学。 最近的NMR光谱提供了引人注目的 系素作用作为成核位点或启动的证据 木质化的位置。 但是，可检测性（并获得 诊断相关数据对于这些重要的数据很难 植物细胞壁的次要组成部分。