Format

Send to

Choose Destination
Nat Plants. 2019 Apr;5(4):352-357. doi: 10.1038/s41477-019-0394-z. Epub 2019 Apr 1.

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

Author information

1
Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY, USA.
2
Agricultural Genetics Institute, Hanoi, Vietnam.
3
DuPont Pioneer, Wilmington, DE, USA.
4
Akita Prefectural University, Akita, Japan.
5
Donald Danforth Plant Science Center, St Louis, MO, USA.
6
Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel.
7
Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany.
8
Duke University, Durham, NC, USA.
9
Napigen, Wilmington, DE, USA.
10
Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY, USA. jacksond@cshl.edu.

Abstract

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.

PMID:
30936436
DOI:
10.1038/s41477-019-0394-z

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center