Effect of silicon deficiency on secondary cell wall synthesis in rice leaf

Tsuyoshi Yamamoto, Atsuko Nakamura, Hiroaki Iwai, Tadashi Ishii, Jian Feng Ma, Ryusuke Yokoyama, Kazuhiko Nishitani, Shinobu Satoh, Jun Furukawa

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Rice (Oryza sativa L.) is a typical Si-accumulating plant and is able to accumulate Si up to >10 % of shoot dry weight. The cell wall has been reported to become thicker under Si-deficient condition. To clarify the relationship between Si accumulation and cell wall components, the physical properties of, and macromolecular components and Si content in, the pectic, hemicellulosic, and cellulosic fractions prepared from rice seedlings grown in hydroponics with or without 1. 5 mM silicic acid were analyzed. In the absence of Si (the -Si condition), leaf blades drooped, but physical properties were enhanced. Sugar content in the cellulosic fraction and lignin content in the total cell wall increased under -Si condition. After histochemical staining, there was an increase in cellulose deposition in short cells and the cell layer just beneath the epidermis in the -Si condition, but no significant change in the pattern of lignin deposition. Expression of the genes involved in secondary cell wall synthesis, OsCesA4, OsCesA7, OsPAL, OsCCR1 and OsCAD6 was up-regulated under -Si condition, but expression of OsCesA1, involved in primary cell wall synthesis, did not increase. These results suggest that an increase in secondary cell wall components occurs in rice leaves to compensate for Si deficiency.

Original languageEnglish
Pages (from-to)771-779
Number of pages9
JournalJournal of Plant Research
Volume125
Issue number6
DOIs
Publication statusPublished - Nov 2012

Fingerprint

silicon
cell walls
rice
synthesis
cell wall components
leaves
lignin
physical properties
silicic acid
epidermis (plant)
hydroponics
leaf blade
sugar content
Oryza sativa
cellulose
cells
gene expression
shoots
seedlings

Keywords

  • Cellulose
  • Lignin
  • Rice
  • Secondary cell wall synthesis
  • Silicon

ASJC Scopus subject areas

  • Plant Science

Cite this

Yamamoto, T., Nakamura, A., Iwai, H., Ishii, T., Ma, J. F., Yokoyama, R., ... Furukawa, J. (2012). Effect of silicon deficiency on secondary cell wall synthesis in rice leaf. Journal of Plant Research, 125(6), 771-779. https://doi.org/10.1007/s10265-012-0489-3

Effect of silicon deficiency on secondary cell wall synthesis in rice leaf. / Yamamoto, Tsuyoshi; Nakamura, Atsuko; Iwai, Hiroaki; Ishii, Tadashi; Ma, Jian Feng; Yokoyama, Ryusuke; Nishitani, Kazuhiko; Satoh, Shinobu; Furukawa, Jun.

In: Journal of Plant Research, Vol. 125, No. 6, 11.2012, p. 771-779.

Research output: Contribution to journalArticle

Yamamoto, T, Nakamura, A, Iwai, H, Ishii, T, Ma, JF, Yokoyama, R, Nishitani, K, Satoh, S & Furukawa, J 2012, 'Effect of silicon deficiency on secondary cell wall synthesis in rice leaf', Journal of Plant Research, vol. 125, no. 6, pp. 771-779. https://doi.org/10.1007/s10265-012-0489-3
Yamamoto, Tsuyoshi ; Nakamura, Atsuko ; Iwai, Hiroaki ; Ishii, Tadashi ; Ma, Jian Feng ; Yokoyama, Ryusuke ; Nishitani, Kazuhiko ; Satoh, Shinobu ; Furukawa, Jun. / Effect of silicon deficiency on secondary cell wall synthesis in rice leaf. In: Journal of Plant Research. 2012 ; Vol. 125, No. 6. pp. 771-779.
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