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  • Joan Rothchild Hardin

How Bacteria Talk To Each Other


Did you know bacteria ‘talk’ with one another? Although bacteria are primitive single-celled organisms, their ability to use chemical signals to communicate with each allows them to synchronize their behavior and act together much like large, multi-cellular organisms. This communication process allows pathogenic bacteria to know when they have amassed enough troops to mount a successful attack to infect a plant or animal, including humans. (Cunningham,  2001-2010) & (iBiology, 2006-2016) Scientists call this cell to cell signaling signaling process Quorum Sensing. Each bacterium measures the concentration of its fellows by sending out a chemical signal and  ‘listening’ for the chemical signals from other like bacteria.