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Keywords:

  • circadian clock;
  • flowering time;
  • gibberellin;
  • growth;
  • membrane fluidity;
  • phytochrome;
  • seed germination;
  • temperature

Contents

 Summary615
I.Introduction616
II.Plant acclimatization to cold616
III.The acquisition of thermotolerance617
IV.Abscisic acid and extreme temperature responses617
V.Altering plant fatty acid composition affects plant tolerance to temperature extremes617
VI.Temperature regulates the protein stability of fatty acid desaturases618
VII.Membrane fluidity and temperature sensing618
VIII. The role of gibberellin in temperature-regulated growth619
IX.Temperature-regulated GA synthesis controls seed germination619
X.Temperature regulates auxin levels to control plant growth rhythms620
XI.The circadian clock: temperature entrainment and compensation620
XII.Temperature regulates flowering time independently of GA synthesis621
XIII.Temperature-responsive periods control annual growth in trees621
XIV.Temperature response pathways share common signalling components622
XV.Flowering time regulators with roles in cold acclimatization623
XVI.A general role for the circadian clock in temperature signal transduction623
XVII.Cytosolic calcium may integrate temperature and circadian signalling624
XVIII. The role of phytochrome signalling in temperature responses624
XIX.Conclusions625
 References625

Summary

Plants can show remarkable responses to small changes in temperature, yet one of the great unknowns in plant science is how that temperature signal is perceived. The identity of the early components of the temperature signal transduction pathway also remains a mystery. To understand the consequences of anthropogenic environmental change we will have to learn much more about the basic biology of how plants sense temperature. Recent advances show that many known plant-temperature responses share common signalling components, and suggest ways in which these might be linked to form a plant temperature signalling network.