Cell Wall Martix

Stable Identifier
R-ALL-9916168
Type
OtherEntity
GO Cellular Component
plant-type cell wall (0009505)
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Summation

Plant cells are made from three groups of polysaccharides, namely, cellulose, hemicelluloses and pectins, each with unique physical properties. Cellulose consists of numerous parallel ?1,4-D-glucan chains; hemicelluloses of primary cell walls are xyloglucans and arabinoxylans; and pectins (e.g. homogalacturonan and rhamnogalacturonan-I) are polymers of galacturonic acid. Specifically, cellulose microfibrils make lateral contacts with each other, forming bundles and a coherent network. Xyloglucans bind to cellulose microfibrils, potentially blocking the stronger cellulose?cellulose interactions. Pectins form a hydrogel that embeds cellulose and xyloglucan (see Cosgrove, DJ, 2023 PMID: 38102449). Pectins also have weak interactions with both cellulose and xyloglucan.

Literature References
PubMed ID Title Journal Year
38102449 Structure and growth of plant cell walls Nat Rev Mol Cell Biol 2024
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