Cell Surface ABP1-TMK Auxin-Sensing Complex Activates ROP GTPase Signaling

被引：245

作者：

Xu, Tongda ^{[1
,2
,3
]}

Dai, Ning ^{[4
]}

Chen, Jisheng ^{[1
]}

Nagawa, Shingo ^{[1
,3
]}

Cao, Min ^{[2
]}

Li, Hongjiang ^{[1
,5
,6
,7
]}

Zhou, Zimin ^{[2
]}

Chen, Xu ^{[5
,6
,7
]}

De Rycke, Riet ^{[5
,6
]}

Rakusova, Hana ^{[5
,6
,7
]}

Wang, Wuyi ^{[3
,8
]}

Jones, Alan M. ^{[9
,10
]}

Friml, Jiri ^{[5
,6
,7
,11
]}

Patterson, Sara E. ^{[8
]}

Bleecker, Anthony B. ^{[4
]}

Yang, Zhenbiao ^{[1
,3
,12
]}

机构：

[1] Univ Calif Riverside, Dept Bot & Plant Sci, Ctr Plant Cell Biol, Riverside, CA 92521 USA

[2] Natl Univ Singapore, Temasek Life Sci Lab, Singapore 117604, Singapore

[3] Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Ctr Plant Stress Biol, Shanghai 200032, Peoples R China

[4] Univ Wisconsin, Dept Bot, Madison, WI 53706 USA

[5] Univ Ghent VIB, Dept Plant Syst Biol, B-9052 Ghent, Belgium

[6] Univ Ghent, Dept Plant Biotechnol & Bioinformat, B-9052 Ghent, Belgium

[7] IST Austria, A-3400 Klosterneuburg, Austria

[8] Univ Wisconsin, Dept Hort, Madison, WI 53706 USA

[9] Univ N Carolina, Dept Biol, Chapel Hill, NC 27599 USA

[10] Univ N Carolina, Dept Pharmacol, Chapel Hill, NC 27599 USA

[11] Masaryk Univ, CEITEC MU, Mendel Ctr Plant Genom & Prote, CZ-62500 Brno, Czech Republic

[12] Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China

来源：

SCIENCE | 2014年 / 343卷 / 6174期

基金：

欧洲研究理事会;

关键词：

BOX PROTEIN TIR1; BINDING PROTEIN-1; PLASMA-MEMBRANE; ARABIDOPSIS ROOTS; RECEPTOR; EXPANSION; ENDOCYTOSIS; DIVISION; PATHWAY; TOBACCO;

D O I：

10.1126/science.1245125

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Auxin-binding protein 1 (ABP1) was discovered nearly 40 years ago and was shown to be essential for plant development and morphogenesis, but its mode of action remains unclear. Here, we report that the plasma membrane-localized transmembrane kinase (TMK) receptor-like kinases interact with ABP1 and transduce auxin signal to activate plasma membrane-associated ROPs [Rho-like guanosine triphosphatases (GTPase) from plants], leading to changes in the cytoskeleton and the shape of leaf pavement cells in Arabidopsis. The interaction between ABP1 and TMK at the cell surface is induced by auxin and requires ABP1 sensing of auxin. These findings show that TMK proteins and ABP1 form a cell surface auxin perception complex that activates ROP signaling pathways, regulating nontranscriptional cytoplasmic responses and associated fundamental processes.

引用

页码：1025 / 1028

页数：4

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