Two weeks ago, there was a talk by Bonnie Bassler (Priceton University). Her talk was absolutely great- she was extremely energetic, enthusiastic and seemed very passionate about her work. She also seemed to absolutely love bacteria. When I listen to a talk I want to hear the speaker's passion for his or her work show in their talks. I cannot stand talks that are drab no matter how good the person might be. Just does not give a good impression you see.
She spoke about quorum sensing in bacteria and I was blown away by how the concept of multicellularity may not be new at all.
But I do have questions about it- while the bacteria produce auto-inducer(s) specific to their own species (say a regional language) and a common auto-inducer (universal language) made across a wide variety of bacteria, the evolutionary aspect of why bacteria need such a mechanism is unclear to me, especially if they are invovled in only one downstream signaling process.
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