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

Claeys, H., Vi, S. L., Xu, X., Satoh-Nagasawa, N., Eveland, A. L., Goldshmidt, A., Feil, R., Beggs, G. A., Sakai, H., Brennan, R. G., Lunn, J. E., Jackson, D. (April 2019) Control of meristem determinacy by trehalose 6-phosphate phosphatases is uncoupled from enzymatic activity. Nat Plants, 5 (4). pp. 352-357. ISSN 2055-0278

URL: https://www.ncbi.nlm.nih.gov/pubmed/30936436
DOI: 10.1038/s41477-019-0394-z

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.

Item Type: Paper
Subjects: organism description > plant > maize
organs, tissues, organelles, cell types and functions > tissues types and functions > meristem
CSHL Authors:
Communities: CSHL labs > Jackson lab
Depositing User: Matthew Dunn
Date: 1 April 2019
Date Deposited: 09 Apr 2019 15:15
Last Modified: 22 Jul 2019 16:53
Related URLs:
URI: http://repository.cshl.edu/id/eprint/37769

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