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

Tongda Xu, Mingzhang Wen, Shingo Nagawa, Ying Fu, Jin-Gui Chen, Ming-Jing Wu, Catherine Perrot-Rechenmann, Jiri Friml UGent, Alan M Jones and Zhenbiao Yang (2010) CELL. 143(1). p.99-110
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.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
EXPANSION, GROWTH, ROP2 GTPASE, LEAF-CELLS, POLARITY, PLASMA-MEMBRANE, PLANT DEVELOPMENT, BOX PROTEIN TIR1, RESPONSIVE GENE-EXPRESSION, BINDING PROTEIN-1
journal title
CELL
Cell
volume
143
issue
1
pages
99 - 110
Web of Science type
Article
Web of Science id
000282362000017
JCR category
BIOCHEMISTRY & MOLECULAR BIOLOGY
JCR impact factor
32.401 (2010)
JCR rank
1/284 (2010)
JCR quartile
1 (2010)
ISSN
0092-8674
DOI
10.1016/j.cell.2010.09.003
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1070134
handle
http://hdl.handle.net/1854/LU-1070134
date created
2010-11-04 15:07:36
date last changed
2012-09-19 14:04:09
@article{1070134,
  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.},
  author       = {Xu, Tongda and Wen, Mingzhang and Nagawa, Shingo and Fu, Ying and Chen, Jin-Gui and Wu, Ming-Jing and Perrot-Rechenmann, Catherine and Friml, Jiri and Jones, Alan M and Yang, Zhenbiao},
  issn         = {0092-8674},
  journal      = {CELL},
  keyword      = {EXPANSION,GROWTH,ROP2 GTPASE,LEAF-CELLS,POLARITY,PLASMA-MEMBRANE,PLANT DEVELOPMENT,BOX PROTEIN TIR1,RESPONSIVE GENE-EXPRESSION,BINDING PROTEIN-1},
  language     = {eng},
  number       = {1},
  pages        = {99--110},
  title        = {Cell surface- and rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis},
  url          = {http://dx.doi.org/10.1016/j.cell.2010.09.003},
  volume       = {143},
  year         = {2010},
}

Chicago
Xu, Tongda, Mingzhang Wen, Shingo Nagawa, Ying Fu, Jin-Gui Chen, Ming-Jing Wu, Catherine Perrot-Rechenmann, Jiri Friml, Alan M Jones, and Zhenbiao Yang. 2010. “Cell Surface- and Rho GTPase-based Auxin Signaling Controls Cellular Interdigitation in Arabidopsis.” Cell 143 (1): 99–110.
APA
Xu, T., Wen, M., Nagawa, S., Fu, Y., Chen, J.-G., Wu, M.-J., Perrot-Rechenmann, C., et al. (2010). Cell surface- and rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis. CELL, 143(1), 99–110.
Vancouver
1.
Xu T, Wen M, Nagawa S, Fu Y, Chen J-G, Wu M-J, et al. Cell surface- and rho GTPase-based auxin signaling controls cellular interdigitation in Arabidopsis. CELL. 2010;143(1):99–110.
MLA
Xu, Tongda, Mingzhang Wen, Shingo Nagawa, et al. “Cell Surface- and Rho GTPase-based Auxin Signaling Controls Cellular Interdigitation in Arabidopsis.” CELL 143.1 (2010): 99–110. Print.