Research the Lliterature on your Own

What new information was discovered about the V. harveyi quorum sensing pathway that made it distinct from Vibrio cholerae? (HINT: look up V. harveyi quorum sensing and examine the literature regarding autoinducer structures).

What processes does V. cholerae use quorum sensing to control, and what is unique about the V. cholerae system compared to other pathogens? (HINT: look up V. cholerae quorum sensing and examine what genes are turned on at low-cell-density compared to high-cell-density)

What is different about the quorum sensing system of Escherichia coli, another Gram-negative bacterium, compared to V. harveyi? What happens when E. coli and V. harveyi are mixed together in a population (HINT: look up information about the autoinducer produced by E. coli and about autoinducer uptake).

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