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A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice
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Integration of polyamines in the cold acclimation response.

Rubén Alcázar1, Juan C Cuevas, Joan Planas

  • 1Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Cologne, Germany.

Plant Science : an International Journal of Experimental Plant Biology
|March 23, 2011
PubMed
Summary

Plants can adapt to cold temperatures through a process called cold acclimation, involving molecular and metabolic changes. Polyamines (PAs) play a role in this response, and genetic engineering could enhance plant cold resistance.

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Area of Science:

  • Plant Physiology
  • Molecular Biology
  • Agricultural Science

Background:

  • Temperature significantly impacts plant distribution and crop yields, with low temperatures damaging sensitive species.
  • Cold acclimation is an adaptive process in temperate plants, involving molecular and physiological changes in response to low temperatures.
  • Gene expression and metabolite profiles change significantly during cold acclimation.

Purpose of the Study:

  • To review and synthesize current data on plant responses to cold stress, focusing on polyamines (PAs).
  • To integrate polyamine responses with global transcriptional and metabolic changes during cold acclimation.
  • To discuss the potential of polyamine genetic engineering for improving plant cold and freezing tolerance.

Main Methods:

  • Review of published literature on polyamine responses to cold stress.
  • Integration of transcriptomic and metabolomic data related to cold stress.
  • Analysis of existing research on polyamine functions in plant cold adaptation.

Main Results:

  • Cold acclimation involves significant changes in gene expression and metabolite profiles.
  • Polyamines (PAs) are implicated in plant responses to cold stress, though their exact role requires further elucidation.
  • Transcriptomic and metabolomic studies have identified key cold-responsive genes and accumulating metabolites.

Conclusions:

  • Polyamines are involved in plant cold stress responses, contributing to cold acclimation.
  • Understanding polyamine roles can lead to strategies for enhancing plant resistance to cold and freezing.
  • Genetic engineering of polyamine pathways holds promise for developing climate-resilient crops.