Identification of an F-Box Protein that Negatively Regulates Pi Starvation Responses

被引：31

作者：

Chen, Zhi-Hui ^{[1
]}

Jenkins, Gareth I. ^{[1
]}

Nimmo, Hugh G. ^{[1
]}

机构：

[1] Univ Glasgow, Fac Biomed & Life Sci, Div Biochem & Mol Biol, Plant Sci Grp, Glasgow G12 8QQ, Lanark, Scotland

来源：

PLANT AND CELL PHYSIOLOGY | 2008年 / 49卷 / 12期

基金：

英国生物技术与生命科学研究理事会;

关键词：

D O I：

10.1093/pcp/pcn157

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The Arabidopsis gene At5g21040 encodes a protein containing both WD40 and F-box motifs, termed FBX2. A T-DNA insertional mutant in this gene was obtained. Analysis of this mutant line showed that FBX2 is a negative regulator of several P-i starvation responses. FBX2 interacts with BHLH32, another negative regulator of P-i starvation responses. We suggest that FBX2 may be part of an SCF-like complex that recruits BHLH32 and its partners, potentially targeting the latter for proteolysis.

引用

收藏

页码：1902 / 1906

页数：5

相关论文

共 22 条

[1] pho2, a phosphate overaccumulator, is caused by a nonsense mutation in a MicroRNA399 target gene [J].

Aung, Kyaw ;

Lin, Shu-I ;

Wu, Chia-Chune ;

Huang, Yu-Ting ;

Su, Chun-Lin ;

Chiou, Tzyy-Jen .

PLANT PHYSIOLOGY, 2006, 141 (03) :1000-1011

[2] PHO2, microRNA399, and PHR1 define a phosphate-signaling pathway in plants [J].

Bari, Rajendra ;

Pant, Bikram Datt ;

Stitt, Mark ;

Scheible, Wolf-Ruediger .

PLANT PHYSIOLOGY, 2006, 141 (03) :988-999

[3] BHLH32 modulates several biochemical and morphological processes that respond to Pi starvation in Arabidopsis [J].

Chen, Zhi-Hui ;

Nimmo, Gillian A. ;

Jenkins, Gareth I. ;

Nimmo, Hugh G. .

BIOCHEMICAL JOURNAL, 2007, 405 (01) :191-198

[4] Regulation of phosphate homeostasis by microRNA in Arabidopsis [J].

Chiou, TJ ;

Aung, K ;

Lin, SI ;

Wu, CC ;

Chiang, SF ;

Su, CL .

PLANT CELL, 2006, 18 (02) :412-421

[5] WRKY75 transcription factor is a modulator of phosphate acquisition and root development in arabidopsis [J].

Devaiah, Ballachanda N. ;

Karthikeyan, Athikkattuvalasu S. ;

Raghothama, Kashchandra G. .

PLANT PHYSIOLOGY, 2007, 143 (04) :1789-1801

[6] Characterization of a sub-family of Arabidopsis genes with the SPX domain reveals their diverse functions in plant tolerance to phosphorus starvation [J].

Duan, Ke ;

Yi, Keke ;

Dang, Lei ;

Huang, Hongjie ;

Wu, Wei ;

Wu, Ping .

PLANT JOURNAL, 2008, 54 (06) :965-975

[7] Arabidopsis thaliana contains two phosphoenolpyruvate carboxylase kinase genes with different expression patterns [J].

Fontaine, V ;

Hartwell, J ;

Jenkins, GI ;

Nimmo, HG .

PLANT CELL AND ENVIRONMENT, 2002, 25 (01) :115-122

[8] A miRNA involved in phosphate-starvation response in Arabidopsis [J].

Fujii, H ;

Chiou, TJ ;

Lin, SI ;

Aung, K ;

Zhu, JK .

CURRENT BIOLOGY, 2005, 15 (22) :2038-2043

[9] The F-box subunit of the SCF E3 complex is encoded by a diverse superfamily of genes in Arabidopsis [J].

Gagne, JM ;

Downes, BP ;

Shiu, SH ;

Durski, AM ;

Vierstra, RD .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (17) :11519-11524

[10] Phosphate starvation root architecture and anthocyanin accumulation responses are modulated by the gibberellin-DELLA signaling pathway in Arabidopsis1[OA] [J].

Jiang, Caifu ;

Gao, Xiuhua ;

Liao, Lili ;

Harberd, Nicholas P. ;

Fu, Xiangdong .

PLANT PHYSIOLOGY, 2007, 145 (04) :1460-1470