Rapid cell expansion and cellulose synthesis regulated by plasmodesmata and sugar: insights from the single-celled cotton fibre

Functional Plant Biology : FPB
Yong-Ling Ruan

Abstract

Higher plants comprise mixtures of some 40 different cell types, and this often complicates the interpretation of data obtained at the tissue level. Studies for a given cell type may provide novel insights into the mechanisms underlying defined cellular and developmental processes. In this regard, the cotton fibre represents an excellent single-cell model to study the control of rapid cell elongation and cellulose synthesis. These single cells, initiated from the ovule epidermis at anthesis, typically elongate to ~3-5 cm in the tetraploid species before they switch to intensive secondary cell wall cellulose synthesis. By maturity, more than 94% of fibre weight is cellulose. To unravel the mechanisms of fibre elongation and cellulose synthesis, two hypotheses have been examined: (a) that sucrose degradation and utilisation mediated by sucrose synthase (Sus) may play roles in fibre development and (b) that symplastic isolation of the fibre cells may be required for their rapid elongation. Reverse genetic and biochemical analyses have revealed the critical role that Sus plays in fibre initiation and early elongation. Late in development, plasma-membrane and cell wall association of Sus protein seems to be involved in rapid cellulo...Continue Reading

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Citations

Mar 4, 2014·Annual Review of Plant Biology·Yong-Ling Ruan
Feb 26, 2019·Frontiers in Plant Science·Ofer Stein, David Granot
Oct 19, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·David D FangChristopher B Florane
Jul 1, 2008·Functional Plant Biology : FPB·Yong-Ling RuanRobert T Furbank
Aug 29, 2020·The New Phytologist·Lu WangYong-Ling Ruan
May 31, 2013·Journal of Integrative Plant Biology·Yong-Ling Ruan
May 23, 2013·Journal of Integrative Plant Biology·Changsong ZouGuoli Song
Nov 18, 2011·Molecular Plant-microbe Interactions : MPMI·Thomas PéronPhilippe Simier
Feb 3, 2016·Frontiers in Plant Science·Jiashuo YangYali Meng
Nov 1, 2017·Plant Biotechnology Journal·Javaria AshrafGuoli Song
Jan 21, 2021·International Journal of Molecular Sciences·Lavinia MareriGiampiero Cai
Mar 18, 2008·Plant Physiology·Diana PersiaMauro Cresti
Nov 24, 2007·BMC Genomics·Laurent G DelucGrant R Cramer
Sep 15, 2009·Trends in Cell Biology·William J LucasJae-Yean Kim

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