1. Microbiology and Infectious Disease
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Bacteria: How Legionella defend their turf

  1. Elisa D Hughes
  2. Michele S Swanson  Is a corresponding author
  1. University of Michigan Medical School, United States
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Cite this article as: eLife 2019;8:e48695 doi: 10.7554/eLife.48695
1 figure

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High-density colonies of Legionella protect themselves by secreting pulses of HGA.

The development of Legionella colonies begins with individual cells adhering to a surface, such as the inside of a water pipe. After reaching a certain density, the bacteria intensify the secretion of HGA, which prevents other Legionella cells from joining the colony. Image credit: Elisa D. Hughes (CC BY 4.0).

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