Cell surface- and Rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis

T. Xu, M. Wen, S. Nagawa, Y. Fu, J. Chen, M. Wu, C. Perrot Rechenmann, J. Friml, A. Jones, Z. Yang, Cell 143 (2010) 99–110.

Download
No fulltext has been uploaded. References only!

Journal Article | Published
Author
; ; ; ; ; ; ; ; ;
Abstract
Auxin is a multifunctional hormone essential for plant development and pattern formation. A nuclear auxin-signaling system controlling auxin-induced gene expression is well established, but cytoplasmic auxin signaling, as in its coordination of cell polarization, is unexplored. We found a cytoplasmic auxin-signaling mechanism that modulates the interdigitated growth of Arabidopsis leaf epidermal pavement cells (PCs), which develop interdigitated lobes and indentations to form a puzzle-piece shape in a two-dimensional plane. PC interdigitation is compromised in leaves deficient in either auxin biosynthesis or its export mediated by PINFORMED 1 localized at the lobe tip. Auxin coordinately activates two Rho GTPases, ROP2 and ROP6, which promote the formation of complementary lobes and indentations, respectively. Activation of these ROPs by auxin occurs within 30 s and depends on AUXIN-BINDING PROTEIN 1. These findings reveal Rho GTPase-based auxin-signaling mechanisms, which modulate the spatial coordination of cell expansion across a field of cells.
Publishing Year
Date Published
2010-10-01
Journal Title
Cell
Volume
143
Issue
1
Page
99 - 110
IST-REx-ID

Cite this

Xu T, Wen M, Nagawa S, et al. Cell surface- and Rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis. Cell. 2010;143(1):99-110. doi:10.1016/j.cell.2010.09.003
Xu, T., Wen, M., Nagawa, S., Fu, Y., Chen, J., Wu, M., … Yang, Z. (2010). Cell surface- and Rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis. Cell, 143(1), 99–110. https://doi.org/10.1016/j.cell.2010.09.003
Xu, Tongda, Mingzhang Wen, Shingo Nagawa, Ying Fu, Jin Chen, Ming Wu, Catherine Perrot Rechenmann, Jirí Friml, Alan Jones, and Zhenbiao Yang. “Cell Surface- and Rho GTPase-Based Auxin Signaling Controls Cellular Interdigitation in Arabidopsis.” Cell 143, no. 1 (2010): 99–110. https://doi.org/10.1016/j.cell.2010.09.003.
T. Xu et al., “Cell surface- and Rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis,” Cell, vol. 143, no. 1, pp. 99–110, 2010.
Xu T, Wen M, Nagawa S, Fu Y, Chen J, Wu M, Perrot Rechenmann C, Friml J, Jones A, Yang Z. 2010. Cell surface- and Rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis. Cell. 143(1), 99–110.
Xu, Tongda, et al. “Cell Surface- and Rho GTPase-Based Auxin Signaling Controls Cellular Interdigitation in Arabidopsis.” Cell, vol. 143, no. 1, Cell Press, 2010, pp. 99–110, doi:10.1016/j.cell.2010.09.003.

Export

Marked Publications

Open Data IST Research Explorer

Search this title in

Google Scholar