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Temperature sensing and cold acclimation.

J Browse1, Z Xin

  • 1Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164-6340, USA. jab@wsu.edu

Current Opinion in Plant Biology
|April 20, 2001
PubMed
Summary
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Plants sense cold temperatures through early changes in membrane fluidity and cytoskeleton. Research in cyanobacteria offers insights into potential biological thermometers for higher plants.

Area of Science:

  • Plant physiology
  • Molecular biology
  • Biochemistry

Background:

  • Cold acclimation is crucial for plant survival in low temperatures.
  • Understanding temperature perception mechanisms in plants is a fundamental question.
  • Early events include membrane fluidity changes, cytoskeleton rearrangement, and calcium influx.

Purpose of the Study:

  • To explore the earliest events in plant cold acclimation.
  • To investigate potential mechanisms for temperature sensing in plants.
  • To draw parallels from cyanobacteria research for higher plant studies.

Main Methods:

  • Review of recent findings on cold acclimation.
  • Analysis of temperature sensing mechanisms in cyanobacteria (Synechocystis PCC6803).

Related Experiment Videos

  • Focus on two-component systems and phosphorelay pathways.

    • Main Results:

    • Membrane fluidity, cytoskeleton, and calcium influx are early responses to cold.
    • Synechocystis PCC6803 uses membrane fluidity sensors and a two-component system.
    • This system involves histidine kinases and response regulators in a His-to-Asp phosphorelay.

    Conclusions:

    • Early cellular events provide clues to temperature perception.
    • Cyanobacteria models, like Synechocystis, can inform research on higher plant thermometers.
    • Further investigation is needed to identify specific biological thermometers in plants.