Noise Reduction by Diffusional Dissipation in a Minimal Quorum Sensing Motif
2008
Noise Reduction in Bacterial Communication
publication
Evidence: moderate
Author Information
Author(s): Tanouchi Yu, Tu Dennis, Kim Jungsang, You Lingchong, Asthagiri Anand
Primary Institution: Duke University
Hypothesis
Can quorum sensing reduce noise in gene expression in bacteria?
Conclusion
Quorum sensing can effectively reduce variability in gene expression by enabling fast signal turnover through diffusion.
Supporting Evidence
- Quorum sensing reduces noise in gene expression by fast signal turnover.
- Diffusion of signals helps in reducing low-frequency noise components.
- Fast decay of transcriptional regulators enhances noise reduction.
Takeaway
Bacteria can talk to each other using signals, and this helps them work better together by reducing noise in their actions.
Methodology
Mathematical modeling and stochastic simulations were used to analyze noise regulation in quorum sensing.
Limitations
The study assumes perfect correlation between extrinsic noise sources and does not account for all possible variations in real systems.
Digital Object Identifier (DOI)
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