Modification of phytosterol composition influences cotton fiber cell elongation and secondary cell wall deposition.

Background: Cotton fiber is a single cell that arises from the epidermis of ovule. It is not only a main economic product of cotton, but an ideal material for studying on the growth and development of plant cell. Our previous study indicated that phytosterol content and the ratio of campesterol to sitosterol fluctuated regularly in cotton fiber development.

Phytosterol content and the campesterol:sitosterol ratio influence cotton fiber development: role of phytosterols in cell elongation.

Phytosterols play an important role in plant growth and development, including cell division, cell elongation, embryogenesis, cellulose biosynthesis, and cell wall formation. Cotton fiber, which undergoes synchronous cell elongation and a large amount of cellulose synthesis, is an ideal model for the study of plant cell elongation and cell wall biogenesis. The role of phytosterols in fiber growth was investigated by treating the fibers with tridemorph, a sterol biosynthetic inhibitor.

Cloning and expression of two sterol C-24 methyltransferase genes from upland cotton (Gossypium hirsuturm L.).

Brassinosteroids (BRs) are an important class of plant steroidal hormones that are essential in a wide variety of physiological processes. Two kinds of intermediates, sitosterol and campesterol, play a crucial role in cell elongation, cellulose biosynthesis, and accumulation. To illuminate the effects of sitosterol and campesterol on the development of cotton (Gossypium hirsuturm L.

Cloning and expression analysis of GhDET3, a vacuolar H+ -ATPase subunit C gene, from cotton.

Vacuolar H(+)-ATPase was regarded as a key enzyme promoting the fiber cell elongation in cotton (Gossypium hirsuturm L.) through regulating turgor-driven pressure involved in polarity expansion of single cell fiber. The DET3, a V-ATPase subunit C, plays an important role in assembling subunits and regulating the enzyme activity, and is involved in Brassinosteroid-induced cell elongation.

[Overexpression of cotton, vacuolar H+-ATPase subunit C promotes cell elongation and regulates stress tolerance in fission yeast].

Cotton (Gossypium hirsuturm L.) vacuolar H+-ATPase plays an important role in fiber cell elongation through regulating the turgor pressure, which is involved in polarity enlargement of fiber cell. Arabidopsis vacuolar H+-ATPase subunit C (DET3) regulates the activity of vacuolar H+-ATPase and subsequently promotes cell elongation.