Glowing Bacteria Boost My Valentine's Day

Since quorum sensing is a critical topic in biology, why not immortalize it on Valentine's Day, with bacteria using this very process to generate beautiful light in the darkness.

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Preaching Microbial Supremacy!: A Bioluminescent Valentine's Day!

Source: All Creatures Great AND Small: Preaching Microbial Supremacy!
Image credits: Mark O. Martin