Related Experiment Video
Updated: Aug 7, 2025

Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
Published on: October 14, 2022
Cytokinin Response Factor 9 Represses Cytokinin Responses in Flower Development
Christine Swinka1, Eva Hellmann1, Paul Zwack2
1Institut für Angewandte Genetik, Freie Universität Berlin, Albrecht Thaer Weg 6, 14195 Berlin, Germany.
Abstract:
A multi-step phosphorelay system is the main conduit of cytokinin signal transduction. However, several groups of additional factors that also play a role in this signaling pathway have been found-among them the Cytokinin Response Factors (CRFs). In a genetic screen, CRF9 was identified as a regulator of the transcriptional cytokinin response. It is mainly expressed in flowers. Mutational analysis indicates that CRF9 plays a role in the transition from vegetative to reproductive growth and silique development. The CRF9 protein is localized in the nucleus and functions as a transcriptional repressor of Arabidopsis Response Regulator 6 (ARR6)-a primary response gene for cytokinin signaling. The experimental data suggest that CRF9 functions as a repressor of cytokinin during reproductive development.
More Related Videos
12:18A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response
Published on: April 17, 2016
11:04Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression
Published on: November 30, 2015
Related Concept Videos
Cell Signaling in Plants
Morphogenesis
Plant Hormones
Positive Regulator Molecules
Photoreceptors and Plant Responses to Light
Cells Coordinate Growth and Proliferation