skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Changes in Cell Wall Properties Coincide with Overexpression of Extensin Fusion Proteins in Suspension Cultured Tobacco Cells

Journal Article · · PLoS ONE
 [1];  [2];  [1];  [1];  [1];  [3];  [4];  [1];  [2];  [3]
  1. Univ. of Georgia, Athens, GA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
  3. Ohio Univ., Athens, OH (United States)
  4. Ohio Univ., Athens, OH (United States); Suzhou Inst. of Nano-Tech and Nano-Bionics (SINANO), Suzhou (China)

Extensins are one subfamily of the cell wall hydroxyproline-rich glycoproteins, containing characteristic SerHyp4 glycosylation motifs and intermolecular cross-linking motifs such as the TyrXaaTyr sequence. Extensins are believed to form a cross-linked network in the plant cell wall through the tyrosine-derivatives isodityrosine, pulcherosine, and di-isodityrosine. Overexpression of three synthetic genes encoding different elastin-arabinogalactan protein-extensin hybrids in tobacco suspension cultured cells yielded novel cross-linking glycoproteins that shared features of the extensins, arabinogalactan proteins and elastin. The cell wall properties of the three transgenic cell lines were all changed, but in different ways. One transgenic cell line showed decreased cellulose crystallinity and increased wall xyloglucan content; the second transgenic cell line contained dramatically increased hydration capacity and notably increased cell wall biomass, increased di-isodityrosine, and increased protein content; the third transgenic cell line displayed wall phenotypes similar to wild type cells, except changed xyloglucan epitope extractability. These data indicate that overexpression of modified extensins may be a route to engineer plants for bioenergy and biomaterial production.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
PS02-06ER6430; MCB- 9874744; 526-HF02; AC05-00OR22725
OSTI ID:
1260605
Alternate ID(s):
OSTI ID: 1265756
Journal Information:
PLoS ONE, Vol. 9, Issue 12; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (30)

Plant cell wall reconstruction toward improved lignocellulosic production and processability journal February 2010
On–Off Switches for Secondary Cell Wall Biosynthesis journal March 2012
Genetic manipulation of lignin reduces recalcitrance and improves ethanol production from switchgrass journal February 2011
Lignin modification improves the biofuel production potential in transgenic Populus tomentosa journal May 2012
A Thermostable Xylanase from Clostridium thermocellum Expressed at High Levels in the Apoplast of Transgenic Tobacco Has No Detrimental Effects and Is Easily Purified journal January 1995
Enhancement of growth by expression of poplar cellulase in Arabidopsis thaliana journal March 2003
Consolidated Pretreatment and Hydrolysis of Plant Biomass Expressing Cell Wall Degrading Enzymes journal July 2011
Role of the Extensin Superfamily in Primary Cell Wall Architecture journal March 2011
Synthetic genes for glycoprotein design and the elucidation of hydroxyproline-O-glycosylation codes journal December 1999
Glycosylation Motifs That Direct Arabinogalactan Addition to Arabinogalactan-Proteins journal June 2003
Pulcherosine, an oxidatively coupled trimer of tyrosine in plant cell walls: Its role in cross-link formation journal February 1998
Self-assembly of the plant cell wall requires an extensin scaffold journal February 2008
Di-isodityrosine Is the Intermolecular Cross-link of Isodityrosine-rich Extensin Analogs Cross-linked in Vitro journal October 2004
Evolution of Elastin Structure book January 1977
Molecular Machines: How Motion and Other Functions of Living Organisms Can Result from Reversible Chemical Changes journal June 1993
Short elastin-like peptides exhibit the same temperature-induced structural transitions as elastin polymers: implications for protein engineering journal October 1998
The acetylation of O-3 of galacturonic acid in the rhamnose-rich portion of pectins journal June 1989
New method for quantitative determination of uronic acids journal August 1973
Amino Acid Analysis by High Performance Liquid Chromatography of Phenylthiocarbamyl Derivatives book January 1986
Relationships between Hydroxyproline-containing Proteins Secreted into the Cell Wall and Medium by Suspension-cultured Acer pseudoplatanus Cells journal May 1977
A Comprehensive Toolkit of Plant Cell Wall Glycan-Directed Monoclonal Antibodies journal April 2010
Immunological Approaches to Plant Cell Wall and Biomass Characterization: Glycome Profiling book January 2012
CP/MAS 13C NMR analysis of cellulase treated bleached softwood kraft pulp journal April 2006
Thermoresponsive Self-Assembly of Short Elastin-Like Polypentapeptides and Their Poly(ethylene glycol) Derivatives journal January 2007
High-yields and extended serum half-life of human interferon α2b expressed in tobacco cells as arabinogalactan-protein fusions journal January 2007
Human growth hormone expressed in tobacco cells as an arabinogalactan-protein fusion glycoprotein has a prolonged serum life journal January 2010
Arabinogalactan-proteins: structure, expression and function journal September 2001
Hydrogen sulfide donor sodium hydrosulfide-induced heat tolerance in tobacco (Nicotiana tabacum L) suspension cultured cells and involvement of Ca2+ and calmodulin journal April 2012
The latest hype on Hyp-O-glycosylation codes journal June 2001
Isolation of pl 4.6 extensin peroxidase from tomato cell suspension cultures and identification of Val-Tyr-Lys as putative intermolecular cross-link site journal April 1996

Cited By (3)

Engineering hydroxyproline‐ O ‐glycosylated biopolymers to reconstruct the plant cell wall for improved biomass processability journal January 2020
Changes of cell wall components during embryogenesis of Castanea mollissima journal February 2020
Ectopic expression of a novel OsExtensin-like gene consistently enhances plant lodging resistance by regulating cell elongation and cell wall thickening in rice journal July 2017

Similar Records

Relationships between hydroxyproline-containing proteins secreted into the cell wall and medium by suspension-cultured Acer psedoplatanus cells
Journal Article · Sun May 01 00:00:00 EDT 1977 · Plant Physiol.; (United States) · OSTI ID:1260605

Co-solubilization of hydroxyproline and pectin. Is there a direct link between the two
Conference · Tue May 01 00:00:00 EDT 1990 · Plant Physiology, Supplement; (USA) · OSTI ID:1260605

Extensins in graminaceous monocots and dicots compared
Conference · Wed Apr 01 00:00:00 EST 1987 · Plant Physiol., Suppl.; (United States) · OSTI ID:1260605