Silica in plants: Biological, biochemical and chemical studies
Silica in plants: Biological, biochemical and chemical studies
复制标题
DOI：
10.1093/aob/mcm247
复制
发表时间：
2007-12-01
期刊：
影响因子：
4.2
通讯作者：
Perry, Carole C.
中科院分区：
文献类型：
--
作者：
Currie, Heather A.;Perry, Carole C.
背景植物学家和材料科学家对硅在植物细胞壁中的作用已有很好的研究，但是，植物如何运输硅并控制硅的聚合，以及硅在植物细胞壁中的作用还不完全清楚。硅作为一种生物活性元素触发自然防御机制;以及二氧化硅减轻非生物毒性的方法。要全面了解体内二氧化硅的形成，还需要阐明二氧化硅形成的环境所起的作用。与聚合二氧化硅相关的细胞壁成分对矿物形成的影响的体外研究结果说明了生物分子和二氧化硅之间发生的相互作用，以及它们的存在对如此形成的矿化结构的影响。范围本植物学简介描述了硅的吸收，储存和功能，并讨论了生物分子的作用时，纳入模型系统的二氧化硅聚合以及未来的研究方向在这一领域。
Background The incorporation of silica within the plant cell wall has been well documented by botanists and materials scientists; however, the means by which plants are able to transport silicon and control its polymerization, together with the roles of silica in situ, are not fully understood.Recent Progress Recent studies into the mechanisms by which silicification proceeds have identified the following: an energy-dependent Si transporter; Si as a biologically active element triggering natural defence mechanisms; and the means by which abiotic toxicities are alleviated by silica. A full understanding of silica formation in vivo still requires an elucidation of the role played by the environment in which silica formation occurs. Results from in-vitro studies of the effects of cell-wall components associated with polymerized silica on mineral formation illustrate the interactions occurring between the biomolecules and silica, and the effects their presence has on the mineralized structures so formed.Scope This Botanical Briefing describes the uptake, storage and function of Si, and discusses the role biomolecules play when incorporated into model systems of silica polymerization as well as future directions for research in this field.