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Related Experiment Video

Updated: Dec 14, 2025

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

CBF-phyB-PIF Module Links Light and Low Temperature Signaling.

Dongqing Xu¹, Xing Wang Deng²

¹State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.

Trends in Plant Science

|July 20, 2020

Summary

Plant photoreceptors and transcription factors mediate light and cold responses. Phytochrome B (phyB) interacts with PIF and CBF pathways to regulate plant growth and development under environmental stress.

Keywords:

CBFs PIFs cold response light signaling phyA phyB

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Bimolecular Fluorescence Complementation

Bimolecular Fluorescence Complementation

Published on: April 15, 2011

Area of Science:

Plant biology
Environmental stress response
Molecular genetics

Background:

Light and low temperatures are critical environmental signals influencing plant growth.
Understanding how plants perceive and respond to these cues is vital for agriculture and ecology.
Phytochrome B (phyB) is a key photoreceptor, while PIFs and CBFs are important transcription factors in plant development.

Purpose of the Study:

To elucidate the molecular mechanisms by which plants integrate light and cold signals.
To investigate the roles of phyB, PIFs, and CBFs in orchestrating plant responses to these environmental cues.

Main Methods:

Analysis of gene expression patterns under varying light and temperature conditions.
Molecular genetic studies involving mutants and overexpression lines.
Biochemical assays to determine protein-protein interactions.

Main Results:

Identified sophisticated regulatory networks involving phyB, PIFs, and CBFs.
Demonstrated the crucial role of these factors in mediating plant growth and development under light and cold stress.
Showcased the integration of light and cold signaling pathways.

Conclusions:

PhyB acts as a central integrator of light and temperature signals.
The coordinated action of phyB, PIFs, and CBFs is essential for adaptive plant responses.
These findings provide a foundation for engineering crops with enhanced environmental resilience.