Gibberellins control fruit patterning in Arabidopsis thaliana

被引：157

作者：

Arnaud, Nicolas ^{[2
]}

Girin, Thomas ^{[1
]}

Sorefan, Karim ^{[1
]}

Fuentes, Sara ^{[1
]}

Wood, Thomas A. ^{[1
]}

Lawrenson, Tom ^{[2
]}

Sablowski, Robert ^{[2
]}

Ostergaard, Lars ^{[1
]}

机构：

[1] John Innes Ctr, Crop Genet Dept, Norwich NR4 7UH, Norfolk, England

[2] John Innes Ctr, Dept Cell & Dev Biol, Norwich NR4 7UH, Norfolk, England

来源：

GENES & DEVELOPMENT | 2010年 / 24卷 / 19期

基金：

英国生物技术与生命科学研究理事会;

关键词：

Seed dispersal; gibberellin; fruit patterning; BRASSICA-NAPUS; POD SHATTER; SEED-GERMINATION; PROTEIN; GENES; LIGHT; ESTABLISHMENT; INDEHISCENT; ELONGATION; METABOLISM;

D O I：

10.1101/gad.593410

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

The Arabidopsis basic helix-loop-helix (bHLH) proteins INDEHISCENT (IND) and ALCATRAZ (ALC) specify tissues required for fruit opening that have major roles in seed dispersal and plant domestication. Here, we show that synthesis of the phytohormone gibberellin is a direct and necessary target of IND, and that ALC interacts directly with DELLA repressors, which antagonize ALC function but are destabilized by gibberellin. Thus, the gibberellin/DELLA pathway has a key role in patterning the Arabidopsis fruit, and the interaction between DELLA and bHLH proteins, previously shown to connect gibberellin and light responses, is a versatile regulatory module also used in tissue patterning.

引用

页码：2127 / 2132

页数：6

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