Control of Cellulose Synthase Complex Localization in Developing Xylem

Control of cellulose synthase complex localization in developing xylem.

Cellulose synthesis in the developing xylem vessels of Arabidopsis requires three members of the cellulose synthase (CesA) gene family. In young vessels, these three proteins localize within the cell, whereas in older vessels, all three CesA proteins colocalize with bands of cortical microtubules that mark the sites of secondary cell wall deposition. In the absence of one subunit, however, the ...

Trafficking of the cellulose synthase complex in developing xylem vessels.

The potential for using cellulosic biomass as a source of fuel has renewed interest into how the large cellulose synthase complex deposits cellulose within the woody secondary walls of plants. This complex sits within the plasma membrane where it synthesizes numerous glucan chains which bond together to form the strong cellulose microfibril. The maintenance and guidance of the complex at the pl...

The cellulose synthase gene superfamily and biochemical functions of xylem-specific cellulose synthase-like genes in Populus trichocarpa.

Wood from forest trees modified for more cellulose or hemicelluloses could be a major feedstock for fuel ethanol. Xylan and glucomannan are the two major hemicelluloses in wood of angiosperms. However, little is known about the genes and gene products involved in the synthesis of these wood polysaccharides. Using Populus trichocarpa as a model angiosperm tree, we report here a systematic analys...

Trafficking of the plant cellulose synthase complex.

Update on Cellulose Synthase Trafficking Trafficking of the Plant Cellulose Synthase Complex

Cellulose is the most abundant component of plant cell walls and its importance is well documented. In the primary cell wall it forms part of the load-bearing network that both controls and maintains cell shape, while allowing regulated cell expansion that is essential during growth. Cellulose is also the major component of secondary cell walls where it is required for mechanical strength for t...