2017
DOI: 10.3389/fpls.2016.02056
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Grass Cell Walls: A Story of Cross-Linking

Abstract: Cell wall matrices are complex composites mainly of polysaccharides, phenolics (monomers and polymers), and protein. We are beginning to understand the synthesis of these major wall components individually, but still have a poor understanding of how cell walls are assembled into complex matrices. Valuable insight has been gained by examining intact components to understand the individual elements that make up plant cell walls. Grasses are a prominent group within the plant kingdom, not only for their important… Show more

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Cited by 200 publications
(226 citation statements)
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References 130 publications
(165 reference statements)
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“…The expression levels of several BAHD acyltransferases were also impacted in 35S::SbMyb60 leaves and stems. This large family of proteins has been shown to esterify arabinoxylans with ferulic and p ‐coumaric acids, and is involved in the cross‐linking of grass cell walls (Withers et al ., ; Hatfield et al ., ). In leaves, two BAHD acyltransferases were upregulated in each of the three lines, with one common BAHD ( Sobic.003G043600 ) upregulated in all three.…”
Section: Resultsmentioning
confidence: 97%
“…The expression levels of several BAHD acyltransferases were also impacted in 35S::SbMyb60 leaves and stems. This large family of proteins has been shown to esterify arabinoxylans with ferulic and p ‐coumaric acids, and is involved in the cross‐linking of grass cell walls (Withers et al ., ; Hatfield et al ., ). In leaves, two BAHD acyltransferases were upregulated in each of the three lines, with one common BAHD ( Sobic.003G043600 ) upregulated in all three.…”
Section: Resultsmentioning
confidence: 97%
“…Transgenic approaches have also been used to enhance the nutritional quality of forages; for example, low-lignin alfalfa lines with enhanced digestibility have been developed [143] and similar technology can also be an option for Napier grass improvement. However, it is not only the reduction but the modification of lignin structure that can be important and the incorporation of p-coumaric acid instead of ferulic acid can improve cell wall digestibility in grasses by reducing cross linking [144].…”
Section: Future Prospectsmentioning
confidence: 99%
“…Subtle changes in the cell wall organization may account for the improvements in cell wall digestibility of these corn mutants [19]. We have proposed that ferulates may play an important role in the organization of grass cell walls [40] and perturbations in this organization could be sufficient to change lignin interactions without causing large changes in biomass production.…”
Section: Cell Wall Lignin and P-coumaratesmentioning
confidence: 99%