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Plasmid and chromosome segregation in prokaryotes
J Møller-Jensen1, R B Jensen, K Gerdes
1Dept of Biochemistry and Molecular Biology, SDU-Odense University, Campusvej 55, DK-5230 Odense M, Denmark.
Trends in Microbiology
|July 6, 2000
Summary
Prokaryotic DNA segregation is dynamic, suggesting a mitotic-like apparatus. Homologues of plasmid partitioning genes in bacterial chromosomes indicate a general DNA partitioning mechanism.
Area of Science:
- Microbiology
- Molecular Biology
- Cell Biology
Background:
- Prokaryotic DNA segregation is crucial for cell division.
- Understanding bacterial chromosome and plasmid partitioning is essential.
Purpose of the Study:
- To investigate the mechanisms of prokaryotic DNA segregation.
- To explore the potential for a general bacterial DNA partitioning system.
Main Methods:
- Utilizing fluorescence microscopy to visualize cellular components.
- Analyzing the localization of plasmids and bacterial chromosomes during segregation.
Main Results:
- Observed highly dynamic partitioning of plasmids and bacterial chromosomes.
- Identified chromosomal homologues of known plasmid partitioning genes.
Conclusions:
- Prokaryotic DNA segregation involves a dynamic, potentially mitotic-like apparatus.
- A general mechanism for bacterial DNA partitioning may exist, involving conserved genes.