Vibrio fischeri communicate primarily through a process known as quorum sensing, where they use chemical signals called autoinducers to gauge their population density. When the concentration of these signaling molecules reaches a certain threshold, the bacteria collectively alter their gene expression, leading to coordinated behaviors, such as bioluminescence. This synchronization allows them to outcompete other microorganisms for resources and effectively enhances their survival and colonization in their symbiotic relationships, such as those with certain marine animals like the Hawaiian bobtail squid.
ow do the Vibrio fischeri communicate? What happens as a result of their communication?
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