scholarly journals Arabidopsis Seed Coat Mucilage is a Specialized Cell Wall that Can be Used as a Model for Genetic Analysis of Plant Cell Wall Structure and Function

2012 ◽  
Vol 3 ◽  
Author(s):  
George W. Haughn ◽  
Tamara L. Western
Keyword(s):  
Cell Wall ◽  
Genetic Analysis ◽  
Plant Cell ◽  
Seed Coat ◽  
Plant Cell Wall ◽  
Structure And Function ◽  
Wall Structure ◽  
Specialized Cell ◽  
And Function ◽  
Seed Coat Mucilage

scholarly journals Identification and evolution of a plant cell wall specific glycoprotein glycosyl transferase, ExAD

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Svenning Rune Møller ◽  
Xueying Yi ◽  
Silvia Melina Velásquez ◽  
Sascha Gille ◽  
Pernille Louise Munke Hansen ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Root Hair ◽  
Plant Cell Wall ◽  
Structure And Function ◽  
Wall Structure ◽  
Terrestrial Plants ◽  
Knock Out ◽  
Carbohydrate Polymers ◽  
And Function

Abstract Extensins are plant cell wall glycoproteins that act as scaffolds for the deposition of the main wall carbohydrate polymers, which are interlocked into the supramolecular wall structure through intra- and inter-molecular iso-di-tyrosine crosslinks within the extensin backbone. In the conserved canonical extensin repeat, Ser-Hyp4, serine and the consecutive C4-hydroxyprolines (Hyps) are substituted with an α-galactose and 1–5 β- or α-linked arabinofuranoses (Arafs), respectively. These modifications are required for correct extended structure and function of the extensin network. Here, we identified a single Arabidopsis thaliana gene, At3g57630, in clade E of the inverting Glycosyltransferase family GT47 as a candidate for the transfer of Araf to Hyp-arabinofuranotriose (Hyp-β1,4Araf-β1,2Araf-β1,2Araf) side chains in an α-linkage, to yield Hyp-Araf 4 which is exclusively found in extensins. T-DNA knock-out mutants of At3g57630 showed a truncated root hair phenotype, as seen for mutants of all hitherto characterized extensin glycosylation enzymes; both root hair and glycan phenotypes were restored upon reintroduction of At3g57630. At3g57630 was named Extensin Arabinose Deficient transferase, ExAD, accordingly. The occurrence of ExAD orthologs within the Viridiplantae along with its’ product, Hyp-Araf 4, point to ExAD being an evolutionary hallmark of terrestrial plants and charophyte green algae.

Structure and function studies of plant cell wall polysaccharides

1994 ◽  
Vol 22 (2) ◽  
pp. 374-378 ◽  
Author(s):  
Peter Albersheim ◽  
Jinhua An ◽  
Glenn Freshour ◽  
Melvin S. Fuller ◽  
Rafael Guillen ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Structure And Function ◽  
Cell Wall Polysaccharides ◽  
And Function

scholarly journals Seed coat mucilage cells ofArabidopsis thalianaas a model for plant cell wall research

2010 ◽  
Vol 5 (7) ◽  
pp. 796-801 ◽  
Author(s):  
Andrej A. Arsovski ◽  
George W Haughn ◽  
Tamara L. Western
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Seed Coat ◽  
Plant Cell Wall ◽  
Seed Coat Mucilage

Structure and Function of Plant Cell Wall Polysaccharides

1985 ◽  
Vol 1985 (Supplement 2) ◽  
pp. 203-217 ◽  
Author(s):  
A. G. DARVILL ◽  
P. ALBERSHEIM ◽  
M. McNEIL ◽  
J. M. LAU ◽  
W. S. YORK ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Structure And Function ◽  
Cell Wall Polysaccharides ◽  
And Function
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