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

Journal Article (Journal Article)

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.

Full Text

Duke Authors

Cited Authors

  • Claeys, H; Vi, SL; Xu, X; Satoh-Nagasawa, N; Eveland, AL; Goldshmidt, A; Feil, R; Beggs, GA; Sakai, H; Brennan, RG; Lunn, JE; Jackson, D

Published Date

  • April 2019

Published In

Volume / Issue

  • 5 / 4

Start / End Page

  • 352 - 357

PubMed ID

  • 30936436

Pubmed Central ID

  • PMC7444751

Electronic International Standard Serial Number (EISSN)

  • 2055-0278

Digital Object Identifier (DOI)

  • 10.1038/s41477-019-0394-z


  • eng

Conference Location

  • England