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CELL DIVISION IN SPIROGYRA. I. MITOSIS.
L C Fowke1, J D Pickett-Heaps1
1Research School of Biological Sciences, Canberra City, Australia.
Journal of Phycology
|April 21, 2016
Summary
Microtubules in Spirogyra sp. cells exhibit dynamic rearrangement during cell division. Wall microtubules are observed to move to the spindle during preprophase and return during telophase.
Area of Science:
- Cell Biology
- Cytology
- Microscopy
Background:
- Spirogyra sp. is a filamentous green alga.
- Understanding cell division mechanisms is crucial in biology.
Purpose of the Study:
- To investigate the dynamic behavior of microtubules during cell division in Spirogyra sp.
- To elucidate the role of microtubules in nuclear and cytoplasmic events during mitosis.
Main Methods:
- Light microscopy
- Electron microscopy
- Cytological observation
Main Results:
- Microtubules reorganize from the cell wall to the spindle during mitosis.
- Nucleolar fragmentation and association with chromosomes observed.
- Nuclear envelope breakdown and reformation documented.
- Organelles concentrate in polar cytoplasm during anaphase.
Conclusions:
- Evidence suggests intact wall microtubules move to the spindle and return.
- Microtubule dynamics are integral to Spirogyra cell division.
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