Species-Independent Attraction to Biofilms through Electrical Signaling

  title={Species-Independent Attraction to Biofilms through Electrical Signaling},
  author={Jacqueline T. Humphries and Liyang Xiong and Jintao Liu and Arthur Prindle and Fang Yuan and Heidi A. Arjes and L Sh Tsimring and G{\"u}rol M. S{\"u}el},
Bacteria residing within biofilm communities can coordinate their behavior through cell-to-cell signaling. However, it remains unclear if these signals can also influence the behavior of distant cells that are not part of the community. Using a microfluidic approach, we find that potassium ion channel-mediated electrical signaling generated by a Bacillus subtilis biofilm can attract distant cells. Integration of experiments and mathematical modeling indicates that extracellular potassium… CONTINUE READING
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