3-O-Methylrhamnose in lower land plant primary cell walls

2004 ◽  
Vol 32 (3) ◽  
pp. 279-289 ◽  
Author(s):  
Zoë A. Popper ◽  
Ian H. Sadler ◽  
Stephen C. Fry
Keyword(s):  
Cell Walls ◽  
Land Plant ◽  
Primary Cell ◽  
Plant Primary Cell Walls

High-performance composites from low-cost plant primary cell walls

2005 ◽  
Vol 36 (11) ◽  
pp. 1486-1493 ◽  
Author(s):  
D.M. Bruce ◽  
R.N. Hobson ◽  
J.W. Farrent ◽  
D.G. Hepworth
Keyword(s):  
Cell Walls ◽  
High Performance ◽  
Low Cost ◽  
Primary Cell ◽  
Plant Primary Cell Walls

scholarly journals Resonant soft X-ray scattering reveals cellulose microfibril spacing in plant primary cell walls

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Dan Ye ◽  
Sarah N. Kiemle ◽  
Sintu Rongpipi ◽  
Xuan Wang ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Cell Walls ◽  
Cellulose Microfibril ◽  
Primary Cell ◽  
X Ray ◽  
X Ray Scattering ◽  
Plant Primary Cell Walls ◽  
Ray Scattering

scholarly journals Preferred crystallographic orientation of cellulose in plant primary cell walls

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Dan Ye ◽  
Sintu Rongpipi ◽  
Sarah N. Kiemle ◽  
William J. Barnes ◽  
Arielle M. Chaves ◽  
...  
Keyword(s):  
Cell Wall ◽  
Crystallographic Orientation ◽  
Cell Walls ◽  
Materials Science ◽  
Physcomitrella Patens ◽  
Orientational Order ◽  
Primary Cell ◽  
X Ray ◽  
Plant Primary Cell Walls ◽  
Cellulose Crystals

Abstract Cellulose, the most abundant biopolymer on earth, is a versatile, energy rich material found in the cell walls of plants, bacteria, algae, and tunicates. It is well established that cellulose is crystalline, although the orientational order of cellulose crystallites normal to the plane of the cell wall has not been characterized. A preferred orientational alignment of cellulose crystals could be an important determinant of the mechanical properties of the cell wall and of cellulose-cellulose and cellulose-matrix interactions. Here, the crystalline structures of cellulose in primary cell walls of onion (Allium cepa), the model eudicot Arabidopsis (Arabidopsis thaliana), and moss (Physcomitrella patens) were examined through grazing incidence wide angle X-ray scattering (GIWAXS). We find that GIWAXS can decouple diffraction from cellulose and epicuticular wax crystals in cell walls. Pole figures constructed from a combination of GIWAXS and X-ray rocking scans reveal that cellulose crystals have a preferred crystallographic orientation with the (200) and (110)/($$1\bar 10$$ 1 1 ¯ 0 ) planes preferentially stacked parallel to the cell wall. This orientational ordering of cellulose crystals, termed texturing in materials science, represents a previously unreported measure of cellulose organization and contradicts the predominant hypothesis of twisting of microfibrils in plant primary cell walls.

scholarly journals An enzyme activity capable of endotransglycosylation of heteroxylan polysaccharides is present in plant primary cell walls

Planta ◽  
2012 ◽  
Vol 237 (1) ◽  
pp. 173-187 ◽  
Author(s):  
Sarah L. Johnston ◽  
Roneel Prakash ◽  
Nancy J. Chen ◽  
Monto H. Kumagai ◽  
Helen M. Turano ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Cell Walls ◽  
Primary Cell ◽  
Plant Primary Cell Walls

Freeze-dried surface replicas of tobacco pectin gels and noncutinized lower epidermal cell surfaces compared

1986 ◽  
Vol 44 ◽  
pp. 206-207
Author(s):  
George C. Ruben ◽  
Gordon H. Bokelman ◽  
Howard H. Sun
Keyword(s):  
Cell Walls ◽  
Middle Lamella ◽  
Land Plant ◽  
Primary Cell ◽  
Major Constituent ◽  
Neutral Sugar ◽  
Pectic Acid ◽  
Pectic Polysaccharides ◽  
Cross Sectional ◽  
Freeze Dried

Pectic polysaccharides play an important role in the extracellular matrix of land plant tissues. Pectins are found in primary cell walls and in the connecting region between cells, the middle lamella. These polysaccharides are thought to function as a binding material within cell walls and between cells. Pectins contain galacturonosyl residues as a major constituent and varying amounts of neutral sugar residues. A portion of the galacturonosyl residues are methyl-esterlfted. Calcium salts of pectin are thought to be present in primary cell walls and middle lamella. The structure of the calcium bond between interfiber galacturonosyl residues has been suggested by x-ray fiber diffraction work. The pectic acid unit cell indicates that the galacturonosyl residue as viewed down the chain axis is roughly 7.2 x 6.8Å along the two crystallographlc a and b axes. One or two waters of hydration can Increase this size by 3-6Å In freeze-etched preparations or an associated calcium Ion can Increase Its cross-sectional dimensions by about 2Å.

scholarly journals Two SusD-Like Proteins Encoded within a Polysaccharide Utilization Locus of an Uncultured Ruminant Bacteroidetes Phylotype Bind Strongly to Cellulose

2012 ◽  
Vol 78 (16) ◽  
pp. 5935-5937 ◽  
Author(s):  
A. K. Mackenzie ◽  
P. B. Pope ◽  
H. L. Pedersen ◽  
R. Gupta ◽  
M. Morrison ◽  
...  
Keyword(s):  
Cell Walls ◽  
Plant Biomass ◽  
Primary Cell ◽  
Biomass Degradation ◽  
Content Type ◽  
Plant Biomass Degradation ◽  
Polysaccharide Utilization Locus ◽  
Plant Primary Cell Walls

ABSTRACTWe demonstrate that two characteristic Sus-like proteins encoded within a polysaccharide utilization locus (PUL) bind strongly to cellulosic substrates and interact with plant primary cell walls. This shows associations between unculturedBacteroidetes-affiliated lineages and cellulose in the rumen and thus presents new PUL-derived targets to pursue regarding plant biomass degradation.

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