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Related Experiment Videos

Plant cell cycle transitions.

Lieven De Veylder1, Jérôme Joubès, Dirk Inzé

  • 1Department of Plant Systems Biology, Flanders Interuniversity Institute for Biotechnology, Ghent University, Technologiepark 927, B-9052 Gent, Belgium. lieven.deveylder@psb.ugent.be

Current Opinion in Plant Biology
|November 13, 2003
PubMed
Summary

Plant cell cycle regulation involves cyclin-dependent kinases (CDKs) and cyclins. Recent research is clarifying how these control critical cell cycle transitions, ensuring proper cell division.

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Area of Science:

  • Plant Biology
  • Molecular Biology
  • Cell Biology

Background:

  • Plant cell cycle checkpoints were recognized three decades ago.
  • Core cell cycle genes are known, but transition mechanisms remain unclear.

Purpose of the Study:

  • To elucidate the mechanisms controlling G1 to S and G2 to M phase transitions in the plant cell cycle.
  • To understand the regulatory roles of cyclin-dependent kinases (CDKs) and cyclins.

Main Methods:

  • Investigated the roles of cyclin-dependent kinases (CDKs) and cyclins in plant cell cycle control.
  • Analyzed the regulatory mechanisms governing CDK activity during the cell cycle.

Main Results:

  • Cyclin-dependent kinases (CDKs) are central regulators of the plant cell cycle.

Related Experiment Videos

  • CDK activity is modulated by regulatory cyclin subunits.
  • Complex monitoring systems control CDK-cyclin complex activity, leading to oscillations.

    • Conclusions:

    • Oscillating CDK activity, driven by CDK-cyclin complexes and regulatory mechanisms, triggers cell cycle stage transitions in plants.
    • Understanding these molecular mechanisms is crucial for plant cell biology.