Control of meristem determinacy by trehalose 6-phosphate phosphatases is uncoupled from enzymatic activity

被引：69

作者：

Claeys, Hannes ^{[1
]}

Vi, Son Lang ^{[1
,6
]}

Xu, Xiaosa ^{[1
]}

Satoh-Nagasawa, Namiko ^{[1
,2
,7
]}

Eveland, Andrea L. ^{[3
]}

Goldshmidt, Alexander ^{[1
,8
]}

Feil, Regina ^{[4
]}

Beggs, Grace A. ^{[5
]}

Sakai, Hajime ^{[2
,9
]}

Brennan, Richard G. ^{[5
]}

Lunn, John E. ^{[4
]}

Jackson, David ^{[1
]}

机构：

[1] Cold Spring Harbor Lab, POB 100, Cold Spring Harbor, NY 11724 USA

[2] DuPont Pioneer, Wilmington, DE USA

[3] Donald Danforth Plant Sci Ctr, St Louis, MO USA

[4] Max Planck Inst Mol Plant Physiol, Potsdam, Germany

[5] Duke Univ, Durham, NC USA

[6] Agr Genet Inst, Hanoi, Vietnam

[7] Akita Prefectural Univ, Akita, Japan

[8] Agr Res Org, Inst Plant Sci, Volcani Ctr, Bet Dagan, Israel

[9] Napigen, Wilmington, DE USA

来源：

NATURE PLANTS | 2019年 / 5卷 / 04期

基金：

美国国家科学基金会;

关键词：

TREHALOSE-6-PHOSPHATE PHOSPHATASE; INFLORESCENCE ARCHITECTURE; EXPRESSION; GENE; PROTEIN; SYSTEM; COMPLEX; GLUCOSE; GROWTH; YIELD;

D O I：

10.1038/s41477-019-0394-z

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Meristem fate is regulated by trehalose 6-phosphate phosphatases (TPPs), but their mechanism of action remains mysterious. Loss of the maize TPPs RAMOSA3 and TPP4 leads to reduced meristem determinacy and more inflorescence branching. However, analysis of an allelic series revealed no correlation between enzymatic activity and branching, and a catalytically inactive version of RA3 complements the ra3 mutant. Together with their nuclear localization, these findings suggest a moonlighting function for TPPs.

引用

页码：352 / 357

页数：6

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