Work

Shoot meristem maintenance is controlled by a GRAS -gene mediated signal from differentiating cells

Year: 2002

Type: preprint

Abstract: Plant shoot development depends on the perpetuation of a group of undifferentiated cells in the shoot apical meristem (SAM). In the Petunia mutant hairy meristem (ham), shoot meristems differentiate postembryonically as continuations of the subtending stem. HAM encodes a putative transcription factor of the GRAS family, which acts non-cell-autonomously from L3-derived tissue of lateral organ primordia and stem provasculature. HAM acts in parallel with TERMINATOR (PhWUSCHEL) and is required for continued cellular response to TERMINATOR and SHOOTMERISTEMLESS (PhSTM). This reveals a novel mechanism by which signals from differentiating tissues extrinsically control stem cell fate in the shoot apex.

Source: Genes & Development

DOI: 10.1101/gad.230702

Authors: Jeroen Stuurman, Fabienne Jäggi, Cris Kuhlemeier

Institution: University of Bern

Language: English

Topic: Plant Molecular Biology Research

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: bronze

Funders: National Science Foundation, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

Award: Molecular analysis of leaf initiation