Journal
NEW PHYTOLOGIST
Volume 206, Issue 3, Pages 1051-1062Publisher
WILEY
DOI: 10.1111/nph.13282
Keywords
cell wall; cell wall regeneration; hemicellulose; hemicellulose-bound form of Si; mechanical property; Oryza sativa; silicon (Si)
Categories
Funding
- China National Natural Science Foundation [31172027]
Ask authors/readers for more resources
Silicon (Si) plays a large number of diverse roles in plants, but the structural and chemical mechanisms operating at the single-cell level remain unclear. We isolate the cell walls from suspension-cultured individual cells of rice (Oryza sativa) andfractionate them into three main fractions including cellulose (C), hemicellulose (HC) and pectin (P). We find that most of the Si is in HC as determined by inductively coupled plasma-mass spectrometry (ICP-MS), where Si may covalently crosslink the HC polysacchrides confirmed by X-ray photoelectron spectroscopy (XPS). The HC-bound form of Si could improve both the mechanical property and regeneration of the cell walls investigated by a combination of atomic force microscopy (AFM) and confocal laser scanning microscopy (CLSM). This study provides further evidence that HC could be the major ligand bound to Si, which broadens our understanding of the chemical nature of anomalous' Si in plant cell walls.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available