Science Friday How Do Bacteria Talk To Each Other?
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May 8, 2025 In this discussion, Dr. Bonnie Bassler, a leading microbiologist from Princeton University and recipient of the National Medal of Science, dives into the fascinating world of bacterial communication. She reveals how bacteria use chemical signals much like a language to interact, assess their surroundings, and adjust behaviors. Bassler also explores the complex social lives of these microorganisms, suggesting their decision-making processes mirror those of higher organisms. Her insights into bacterial interactions could revolutionize our understanding of both microbes and human behavior.
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Bacteria Chemical Communication
- Bacteria communicate chemically to count neighbors and identify friends or foes.
- They change behaviors based on population density and community composition.
Bacteria Share or Fight
- Bacteria share enzymes and resources with relatives but make poisons against competitors.
- Group behavior varies based on presence of family or foes.
Complex Bacterial Social Sensing
- Bacteria detect different neighbors including relatives, other species, and host organisms.
- Viruses eavesdrop on bacterial communication to optimize infection timing.