Multimodal Control of Bacterial Gene Expression by Red and Blue Light

Stefanie S M Meier1, Elina Multamäki2, Américo T Ranzani1

  • 1Department of Biochemistry, University of Bayreuth, Bayreuth, Germany.

Abstract

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Bacterial Signaling01:30

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
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