Multiple small RNAs act additively to integrate sensory information and control quorum sensing in Vibrio harveyi

Article Abstract:

Quorum sensing is a cell-cell communication mechanism that bacteria use to collectively regulate gene expression and at a higher level, to coordinate group behavior. Five Qrr sRNAs that control quorum sensing in Vibrio harveyi are identified. Mutational analysis revealed that unlike in V. cholerae, where the sRNAs act redundantly, in V. harveyi, the Qrr sRNAs function additively to control quorum sensing.

Bacterial genetics, RNA

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The Vibrio harveyi quorum-sensing system uses shared regulatory components to discriminate between multiple autoinducers

Article Abstract:

Differential fluorescence induction is used to identify 50 quorum-sensing-controlled promoters. It is shown that the Vibrio harveyi quorum-sensing transition is not switch-like but rather operates in a graded manner and that such signaling arrangement, which uses shared regulatory proteins, provides V. harveyi a mechanism to respond uniquely to different autoinducer (AI) input states.

New Jersey, Analysis, Bioluminescence, Lactones, Quorum sensing

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The languages of bacteria

Article Abstract:

Types of communication among bacteria are discussed in this review article. Quorum sensing, which lets bacteria behave as though they are multicellular organisms and confuses the line between prokaryotes and eukaryotes, has been found to enable bacteria to communicate, in many cases, in a sort of multilingual manner, between species.

Statistical Data Included, Bacteria, Cell interaction, Microbiological chemistry

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