The Fermilab Lecture Series Continues with "How Bacteria Talk to Each Other" Wit

Daily Herald (Arlington Heights, IL), November 6, 2011 | Go to article overview
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The Fermilab Lecture Series Continues with "How Bacteria Talk to Each Other" Wit


Byline: Submitted by Fermilab

The Fermilab Lecture Series continues with "How Bacteria Talk to Each Other" with Dr. Bonnie Bassler of Princeton University at 8 p.m. Friday, Nov. 11, at Fermilab, off Pine Street in Batavia. Tickets are $7.

Bacteria communicate with one another using small chemical molecules that they release into the environment. These molecules travel from cell to cell and the bacteria have receptors on their surfaces that allow them to detect and respond to the build up of the molecules. This process of cell-to-cell communication in bacteria is called "Quorum Sensing" and it allows bacteria to synchronize behavior on a population-wide scale.

Bacterial behaviors controlled by quorum sensing are usually ones that are unproductive when undertaken by an individual bacterium acting alone but become effective when undertaken in unison by the group. For example, quorum sensing controls virulence, sporulation, and the exchange of DNA. Thus, quorum sensing is a mechanism that allows bacteria to function as multicellular organisms. Current biomedical research is focused on the development of novel anti-bacterial therapies aimed at interfering with quorum sensing. Such therapies could be used to control bacterial pathogenicity.

Bassler is a member of the National Academy of Sciences and the American Academy of Arts and Sciences. She is a Howard Hughes Medical Institute Investigator and the Squibb Professor of Molecular Biology at Princeton University. Bassler received a B.S. in Biochemistry from the University of California at Davis, and a Ph.D. in Biochemistry from the Johns Hopkins University. She performed postdoctoral work in Genetics at the Agouron Institute, and she joined the Princeton faculty in 1994. The research in her laboratory focuses on the molecular mechanisms that bacteria use for intercellular communication.

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