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Aug 21, 2012 · Primary walls are comprised of 15–40% cellulose, 30–50% pectic polysaccharides, and 20–30% xyloglucans and lesser amounts of arabinoxylans and structural proteins, on a dry weight basis, structured into one or more lamellae.
Mar 15, 2019 · A cell wall provides an additional layer of protection on top of the cell membrane. It is found in plants, algae, fungi, prokaryotes and eukaryotes. The cell wall makes plants rigid and less flexible. It is primarily made up of carbohydrates like pectin, cellulose and hemicellulose.
Dec 15, 2023 · Cell form takes shape through finely tuned patterns of irreversible wall deformation, a result of spatial and temporal variations in wall loosening, reinforcement, remodelling, synthesis and...
Apr 23, 2022 · Recent modeling indicated that CMFs in primary cell walls may stretch elastically up to ∼1% under the action of biologically relevant tensile forces, whereas the matrix polysaccharides are much more stretchy because of their ability to uncoil (Zhang et al., 2021c).
For a plant cell to grow or change its shape, the cell wall has to stretch or deform. Because of their crystalline structure, however, individual cellulose microfibrils are unable to stretch.
- Bruce Alberts, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts, Peter Walter
- 2002
- 2002
May 24, 2021 · This relaxation of the wall stress reduces cell turgor, inducing water uptake by osmosis, which in turn stretches the cell wall and restores the turgor. Without the supply of additional wall material, continuous stretching would lead to wall thinning and eventually rupture.
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Apr 1, 2014 · We will discuss how several aspects relate to cell expansion, including: the interaction network between cellulose microfibrils and other wall polymers, the relationship between microtubules and cell wall architecture, the influence of hormones and cell wall integrity sensing in cell wall regulation, the role of the cytoskeleton and trafficking ...
