Modification of chemical properties of cell walls by silicon and its role in regulation of the cell wall extensibility in oat leaves

Journal of Plant Physiology
Mohammad Talim HossainTakayuki Hoson

Abstract

Effects of silicon on the mechanical and chemical properties of cell walls in the second leaf of oat (Avena sativa L.) seedlings were investigated. The cell wall extensibility in the basal region of the second leaf was considerably higher than that in the middle and subapical regions. Externally applied silicon increased the cell wall extensibility in the basal region, but it did not affect the extensibility in the middle and subapical regions. The amounts of cell wall polysaccharides and phenolic compounds, such as diferulic acid (DFA) and ferulic acid (FA), per unit length were lower in the basal region than in the middle and subapical regions of the leaf, and silicon altered these amounts in the basal region. In this region, silicon decreased the amounts of matrix polymers and cellulose per unit length and of DFA and FA, both per unit length and unit matrix polymer content. Silicon treatment also lowered the activity of phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) in the basal region. In contrast, the amount of silicon in cell walls increased in response to silicon treatment in three regions. These results suggest that in the basal region, silicon reduces the net wall mass and the formation of phenolic acid-mediated cross-l...Continue Reading

References

Jan 1, 1997·Plant Physiology·J RöslerJ Schmid
Sep 7, 2001·Journal of Plant Research·T Hoson
May 16, 2002·Physiologia Plantarum·Alexander LuxYukihiro Sugimoto
Jul 1, 1995·The Plant Cell·R. Whetten, R. Sederoff
Feb 13, 2003·Journal of Plant Research·Takayuki Hoson
Jul 26, 2003·Plant & Cell Physiology·Taiichiro HattoriYukihiro Sugimoto
Jul 29, 2003·Journal of Plant Research·Mohammad Talim HossainTakayuki Hoson

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Citations

Sep 16, 2011·Food Science and Technology International = Ciencia Y Tecnología De Los Alimentos Internacional·T Thongsook, T Kongbangkerd
Mar 29, 2013·International Journal of Molecular Sciences·Rogelio SantiagoRosa A Malvar
Apr 28, 2018·Environmental Science and Pollution Research International·Aline Soares PereiraLuciane Almeri Tabaldi
Mar 2, 2019·Planta·Cylia HaddadPhilippe Etienne
Feb 6, 2018·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Talitha Soares PereiraAllan Klynger da Silva Lobato
Jun 21, 2011·Journal of Plant Physiology·Kazuyuki WakabayashiTakayuki Hoson

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