Involvement of cell wall-bound phenolic acids in decrease in cell wall susceptibility to expansins during the cessation of rapid growth in internodes of floating rice

Journal of Plant Physiology
Daisuke SasayamaKazuyuki Itoh

Abstract

The cell walls in the elongating zone of submerged floating rice internodes show high susceptibility to expansins. When internode sections corresponding to such an elongation zone were incubated for 24h under osmotic stress conditions produced by treatment with 100mM polyethylene glycol 4000 (PEG), the cell wall susceptibility to expansins remained at its initial level, while the susceptibility of internode sections incubated under unstressed conditions decreased considerably during the same period. The contents of polysaccharides and phenolic acids as ferulic, diferulic and p-coumaric acids in the cell walls of internode sections increased substantially under unstressed conditions, but the increases were almost completely prevented by osmotic stress. Ferulic acid applied to internode sections under osmotic stress reduced the susceptibility of the cell walls to expansins and increased the levels of ferulic and diferulic acids in the cell walls, with little effect on the accumulation of polysaccharides. In contrast, applied p-coumaric acid increased the level of p-coumaric acid in the cell walls without a change in the levels of ferulic and diferulic acids but did not reduce the susceptibility to expansins. These results suggest...Continue Reading

References

Oct 10, 1990·Carbohydrate Research·T Ishii, T Hiroi
Apr 1, 1997·Plant Physiology·H T Cho, H Kende
Jun 10, 1997·Proceedings of the National Academy of Sciences of the United States of America·D J CosgroveD M Durachko
Oct 10, 1998·Plant Physiology·D J Cosgrove
Dec 10, 1998·Plant Physiology·H KendeH T Cho
Jul 5, 1994·Proceedings of the National Academy of Sciences of the United States of America·S McQueen-Mason, D J Cosgrove
Jun 1, 1996·Annual Review of Plant Physiology and Plant Molecular Biology·Nicholas C. Carpita
Nov 2, 2005·Nature Reviews. Molecular Cell Biology·Daniel J Cosgrove
Jan 1, 1984·Planta·I Raskin, H Kende

❮ Previous
Next ❯

Citations

Jan 13, 2015·Plant Physiology and Biochemistry : PPB·Liliana B PenaSusana M Gallego
Jun 21, 2015·Journal of Plant Physiology·Shan ZhouWei Wang
Aug 3, 2016·Plant & Cell Physiology·Fan LinLaura E Bartley

❮ Previous
Next ❯

Related Concepts