In vitro simulation studies of silica deposition induced by lignin from rice.

被引：29
作者：
Fang J.Y. [1 ]
Ma X.L. [1 ]
机构：
[1] Institute of Biodiversity Research, Huangshan University, Huangshan
来源：
Journal of Zhejiang University SCIENCE B | 2006年 / 7卷 / 4期
基金：
中国国家自然科学基金;
关键词：
Lignin; Silica precipitation; Higher plants; Q58; Q811;
D O I：
10.1631/jzus.2006.B0267
中图分类号：
学科分类号：
摘要：
To reveal the possible mechanism of silica deposition in higher plants, lignin was isolated from rice straw following a modified method to conduct a simulation experiment in vitro. UV and infrared absorption spectra showed that the substance had the unique characteristics of pure lignin. The presence of silicon in the precipitation was revealed by TEM (transmission electron microscopy) with EDXA (energy dispersive X-ray analysis) device. It was found that in the borax solution where lignin precipitation occurred silica-lignin co-precipitation was produced but not in the DMSO solution where lignin was broken into its composition compounds and did not precipitate. This means that it is macromolecular lignin itself but not its compounds that could induce silica deposition in higher plants.
引用
收藏
页码：267 / 271
页数：4
相关论文
共 65 条
[11]  
Snyder G.(1999)Stable five-and six-coordinated silicate anions in aqueous solution Science 286 1129-1132
[12]  
Unruh B.(2004)Polycationic peptides from diatom biosilica that direct silica nanosphere formation Nutrition and Cancer 50 198-205
[13]  
Cisar J.(1996)Lignin-simulated reduction of oxidative DNA lesions in testicular cells and lymphocytes of Sprague-Dawley rats in vitro and ex vivo Cellulose Chemistry and Technology 30 395-410
[14]  
Epstein E.(1990)Extraction and comparative characterization of ball-milled lignin (LM), enzyme lignin (LE) and alkali lignin (LA) from wheat straw Annu. Rev. Plant Physiol. Plant Mol. Biol. 41 455-496
[15]  
Fang J.Y.(1999)Lignin: occurrence, biogenesis and biodegradation Plant and Soil 209 217-224
[16]  
Wang H.(1979)Effect of silicon on enzyme activity, and sodium, potassium and calcium concentration in barley under salt stress Ann. Bot. 44 79-84
[17]  
Chen Y.(1964)The ultrastructure and analytical microscopy of silicon deposition in the intercellular spaces of the roots of Ann. Bot. 28 169-185
[18]  
Zhang F.S.(1975) (L.) Moench Ann. Bot. 39 995-1001
[19]  
Inanaga S.(2003)Types of opaline silica depositions in the leaves of British grasses Phytopathology 93 256-261
[20]  
Okasaka A.(2000)The distribution of silicon deposits in the roots of Recent Research and Development of Agricultural and Food Chemistry 4 1-26
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