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Fluorescence Live-cell Imaging of the Complete Vegetative Cell Cycle of the Slow-growing Social Bacterium Myxococcus xanthus
Published on: June 20, 2018
Chemosensory pathways, motility and development in Myxococcus xanthus
David R Zusman1, Ansley E Scott, Zhaomin Yang
1Department of Molecular and Cell Biology, University of California, Berkeley, California 94720-3204, USA. zusman@berkeley.edu
Nature Reviews. Microbiology
|October 9, 2007
Summary
Myxococcus xanthus, a bacterium with a complex life cycle, utilizes numerous regulatory genes and eight chemosensory pathways. Some pathways control motility, while others regulate gene expression during development.
Area of Science:
- Microbiology
- Bacterial Genetics
- Developmental Biology
Background:
- Myxococcus xanthus exhibits a complex life cycle involving predation, swarming, and multicellular development.
- The bacterium possesses a large genome with a significant number of regulatory genes.
- Chemosensory pathways are crucial for bacterial behavior and adaptation.
Purpose of the Study:
- To investigate the role of regulatory genes and chemosensory pathways in the life cycle of Myxococcus xanthus.
- To understand how these pathways contribute to motility and developmental gene expression.
Main Methods:
- Genomic analysis to identify regulatory genes and chemosensory pathways.
- Functional studies to determine the role of specific pathways in motility and development.
Main Results:
- The Myxococcus xanthus genome contains approximately 605 regulatory genes.
- Eight distinct clusters of chemotaxis-like genes define eight chemosensory pathways.
- While many pathways regulate motility, at least two are involved in controlling developmental gene expression.
Conclusions:
- Chemosensory pathways play multifaceted roles in Myxococcus xanthus, governing both motility and complex developmental processes.
- The genetic architecture of Myxococcus xanthus supports intricate regulation of its life cycle.
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