Synchronization of E. coli Bacteria Moving in Coupled Microwells.

Area of Science:

• Microbiology
• Biophysics
• Systems Biology

Background:

• Synchronization is fundamental to biological processes.
• Understanding coupled biological oscillators requires studying individual units and their interactions.
• Motility in microorganisms like E. coli exhibits complex dynamics.

Purpose of the Study:

• To develop a novel single-cell assay for studying mutual synchronization in E. coli motility.
• To investigate the mechanisms of synchronization in confined microbial populations.
• To quantify the coupling strength between individual E. coli oscillators.

Main Methods:

• Utilizing circular microcavities to isolate individual E. coli cells and induce self-sustained oscillations.
• Connecting microcavities via microchannels to observe synchronization patterns and phase slips.
• Applying mathematical rules of synchronization to quantify the coupling strength between E. coli cells.

Main Results:

• Demonstrated that E. coli cells in connected microcavities exhibit mutually synchronized rhythmic motility.
• Observed synchronization patterns consistent with established mathematical models of coupled oscillators.
• Successfully quantified the coupling strength governing the coordinated movement of E. coli.

Conclusions:

• The developed single-cell assay provides a platform for studying synchronization in microbial active matter.
• Findings advance the understanding of motility dynamics in confined environments.
• Opens avenues for engineering networks of coupled biological oscillators.