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Plant responses to cold: Transcriptome analysis of wheat
Mark O Winfield1, Chungui Lu, Ian D Wilson
1School of Biological Sciences, University of Bristol, Bristol, UK. Mark.Winfield@bristol.ac.uk
Plant Biotechnology Journal
|June 22, 2010
Summary
Wheat plants need cold exposure to survive freezing temperatures, a process called cold acclimation. This review explores how gene expression changes during acclimation, impacting winter hardiness in different wheat varieties.
Area of Science:
- Plant Biology
- Environmental Stress Physiology
- Molecular Genetics
Background:
- Temperature and light significantly influence plant growth and development.
- Wheat varieties differ in their vernalization requirements for flowering.
- Cold acclimation is essential for plants to acquire freezing tolerance.
Purpose of the Study:
- To review the key features of cold acclimation in plants.
- To focus on transcriptome reprogramming during cold acclimation.
- To highlight differences between cold-hardy and cold-sensitive wheat varieties.
Main Methods:
- Review of existing literature on plant cold acclimation.
- Analysis of gene expression patterns (transcriptome reprogramming).
- Comparison of physiological and biochemical changes in different wheat varieties.
Main Results:
- Cold acclimation involves complex physiological and biochemical changes.
- Differential gene expression, including transcription factors, mediates cold tolerance.
- Significant differences exist in cold acclimation mechanisms between hardy and sensitive varieties.
Conclusions:
- Understanding cold acclimation and transcriptome reprogramming is crucial for improving crop resilience.
- Cold and freezing stress are major threats to plant productivity.
- Research into cold acclimation can help mitigate crop losses due to environmental stress.
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