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Division without Binary Fission: Cell Division in the FtsZ-Less Chlamydia
Scot P Ouellette1, Junghoon Lee2, John V Cox3
1Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA scot.ouellette@unmc.edu.
Journal of Bacteriology
|June 17, 2020
Summary
Chlamydia bacteria, lacking FtsZ, use MreB for cell division via budding, not binary fission. This unique MreB-dependent process synthesizes peptidoglycan for division in these obligate intracellular pathogens.
Area of Science:
- Microbiology
- Bacterial Cell Division
- Pathogen Biology
Background:
- Chlamydia are obligate intracellular bacteria with reduced genomes.
- They lack FtsZ, a key cell division protein found in most bacteria.
- Chlamydia possess unique cell division mechanisms despite lacking peptidoglycan in their envelopes.
Purpose of the Study:
- To explore the mechanism of cell division in Chlamydia.
- To understand the role of MreB in Chlamydia cell division.
- To detail the synthesis and use of peptidoglycan in Chlamydia division.
Main Methods:
- Review of recent research on Chlamydia cell division.
- Analysis of peptidoglycan synthesis pathways.
- Identification and characterization of divisome components.
Main Results:
- Chlamydia synthesizes a canonical peptidoglycan structure for cell division.
- MreB substitutes for FtsZ in organizing the divisome.
- Chlamydia divides via MreB-dependent polarized budding, not FtsZ-dependent binary fission.
Conclusions:
- Chlamydia employs a novel MreB-dependent cell division strategy.
- Understanding this unique mechanism is crucial for studying this important pathogen.
- Further research can elucidate the intricacies of chlamydial growth and division.
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