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Updated: Aug 4, 2026
11:19
Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast
Published on: February 20, 2017
Microtubules, membranes and cytokinesis
1Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. Aaron_Straight@hms.harvard.edu
Current Biology : CB
|November 9, 2000
Summary
Cell division relies on coordinating chromosome movement with cell splitting. Microtubules guide cell cleavage and membrane addition, ensuring two new cells form correctly.
Area of Science:
- Cell Biology
- Molecular Biology
- Genetics
Background:
- Cell division requires precise coordination between chromosome segregation and cytokinesis.
- The mitotic spindle and cytokinetic apparatus must interact for proper cell division.
- Cleavage furrow placement and new membrane formation are critical for daughter cell production.
Purpose of the Study:
- To elucidate the mechanisms coordinating chromosome segregation and cell cleavage.
- To understand the role of microtubule structures in cytokinesis.
- To investigate the importance of membrane vesicle fusion in completing cell division.
Main Methods:
- Microscopy techniques to visualize spindle and cytokinetic apparatus interactions.
- Genetic manipulation to study microtubule-cytoskeleton interactions.
- Biochemical assays to analyze membrane vesicle trafficking and fusion.
Main Results:
- The microtubule midzone stimulates cortical activity for proper cleavage furrow ingression.
- Specialized microtubule structures direct membrane vesicles to the cleavage site.
- Vesicle fusion at the plasma membrane is essential for completing cytokinesis.
Conclusions:
- Successful cell division depends on intricate crosstalk between the mitotic spindle, contractile ring, and plasma membrane.
- Microtubule-based mechanisms are crucial for guiding cytokinesis and membrane dynamics.
- Targeting vesicle fusion offers a potential avenue for controlling cell division.
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