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- W1485472541 abstract "The cell wall plays a major role in determining the expansion, growth and shape of plant cells, and thus of the plant itself. Additionally, cell wall breakdown products are used as developmental signals. Moreover, the cell wall is in the front line of defence, forming a significant barrier to penetration by pathogens and pathogen vectors. There is great diversity in the polysaccharides of the cell wall which is composed of cellulose microfibrils, with the matrix polysaccharides, pectins and hemicelluloses binding non-covalently to the cellulose molecules, crosslinking them in an extensive network. Agronomically, a variety of industries are reliant on cell wall polysaccharides, particularly in the processing of foods. However, surprisingly little is known about their precise role(s) in planta. This is even more apparent considering that the polysaccharide composition of different cell types and organs differs, and changes over time, suggesting that the polysaccharides have a variety of specific roles. With the completion of genome sequencing projects in model and commercially-important plant species, significant progress has been made in elucidating the proteins responsible for cell wall synthesis, leading to potential biotechnological applications. La pared celular juega un importante rol en la determinacion de la expansion, crecimiento y forma celular, como tambien de la planta misma. Adicionalmente, los productos de la degradacion de la pared celular son usados como senales de desarrollo. Por otra parte, la pared celular esta en la linea frontal de defensa, constituyendo una importante barrera a la penetracion de patogenos y vectores patogenos. Hay una gran diversidad en los polisacaridos de la pared celular, la que esta compuesta por microfibrillas de celulosa, embebidas en una matriz de pectinas y hemicelulosas unidas en forma no covalente a las moleculas de celulosa, formando una extensa red. Agronomicamente, varias industrias dependen de los polisacaridos de la pared celular, particularmente para el procesamiento de alimentos. Sin embargo, asombrosamente, poco se sabe sobre su rol exacto en la pared celular de la planta. Esto se hace incluso mas evidente si se considera que la composicion de los polisacaridos de diferentes tipos de celulas y organos difieren, y cambian en el tiempo, sugiriendo que los polisacaridos tienen una variedad de funciones especificas. Al completarse los proyectos de secuenciacion genomica de plantas modelo y de importancia economica, se han obtenido progresos significativos en determinar las proteinas responsables de la sintesis de la pared celular, todo lo cual conduce a potenciales aplicaciones biotecnologicas." @default.
- W1485472541 created "2016-06-24" @default.
- W1485472541 creator A5060606282 @default.
- W1485472541 date "2006-12-05" @default.
- W1485472541 modified "2023-09-27" @default.
- W1485472541 title "Biosynthesis of plant cell walls." @default.
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