Mechanisms underlying bacterial persistence in a mutualism
In horizontally transmitted bacterial symbioses, the association must not only successfully initiate the association between an environmental microbe and a potential host, but also develop mechanisms to assure a longtime maintenance between the species. In the squid-vibrio symbiosis, the two partners have evolved both morphological and biochemical mechanisms by which to assure the successful persistence of the collaboration. These mechanisms build on pre-existing signaling capabilities present within the biology of each partner, like quorum sensing and responses to small RNA, revealing common processes that may be shared among other host-microbe associations.
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