2008
DOI: 10.6090/jarq.42.181
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Aqueous Macromolecules with Silicon from Alcoholinsoluble Residues of Rice Seedlings

Abstract: Rice (Oryza sativa) seedlings were grown in the presence of 5 mM orthosilicic acid (H 4 SiO 4 , IUPAC name: tetrahydroxyl silane). More than 80% of silicon absorbed in the rice was localized in the alcoholinsoluble residues (AIR) fractions. AIR refers to cell wall materials in the text. Driselase (commercial cell wall hydrolyzing enzyme preparation) released 3% of silicon present in the rice AIR into water-soluble fractions. Size-exclusion high performance liquid chromatography/inductively coupled plasma atomi… Show more

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Cited by 5 publications
(5 citation statements)
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“…The possible interaction of polymerized Si with cell wall components other than MLG has been previously investigated, and putative Si-binding components have been extracted from the cell wall. Although these studies suggest the co-existence of phenol-carbohydrate or lignin-carbohydrate complexes with high molecular weight Si complexes in rice shoot cell walls, the cell wall component that binds to the Si complex has not been chemically identified (Inanaga andOkasaka 1995, Ishii andMatsunaga 2009).…”
Section: Interaction Of Si With Other Cell Wall Componentsmentioning
confidence: 99%
See 1 more Smart Citation
“…The possible interaction of polymerized Si with cell wall components other than MLG has been previously investigated, and putative Si-binding components have been extracted from the cell wall. Although these studies suggest the co-existence of phenol-carbohydrate or lignin-carbohydrate complexes with high molecular weight Si complexes in rice shoot cell walls, the cell wall component that binds to the Si complex has not been chemically identified (Inanaga andOkasaka 1995, Ishii andMatsunaga 2009).…”
Section: Interaction Of Si With Other Cell Wall Componentsmentioning
confidence: 99%
“…Finally, Si is deposited into the cell walls of the epidermis as a polymer of amorphous Si, forming Si-cuticle double layers and Si-cellulose double layers beneath the cuticle. Although a possible interaction between Si and cell wall components has long been postulated, the molecular basis of this final process has not been elucidated (Inanaga andOkasaka 1995, Ishii andMatsunaga 2009).…”
Section: Introductionmentioning
confidence: 99%
“…Subsequently, a water fraction was obtained by enzymatic degradation of the cell wall. In this water fraction, silicon was found through SEC-ICP-OES to occur as bound to high molecular weight compounds (probably polysaccharides) [197]. Moreover, a relevant role of peptides and proteins in the accumulation, transport, and metabolism of silicon compounds is revealed in the literature.…”
Section: Organic Silicon Compounds In Plantsmentioning
confidence: 95%
“…In general, biomacromolecules are involved in the transport and polymerization process of silicon in the cell wall [195,196]. Ishii and Matsunaga [197] isolated an alcohol-insoluble fraction from rice seedlings. Subsequently, a water fraction was obtained by enzymatic degradation of the cell wall.…”
Section: Organic Silicon Compounds In Plantsmentioning
confidence: 99%
“…В растительных тканях крем-ний входит в состав клеточных стенок, образуя комплексы с лигнином, клет-чаткой и структурными протеинами [2,3]. В организме животных и человека кремний также вносит существенный вклад в функционирование соедини-тельных тканей, придаёт прочность стенкам кровеносных сосудов и пре-пятствует проникновению липидов в плазму крови.…”
Section: кремний относится к биологически важным элементам необхо-диunclassified