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The functional units of quorum sensing are called autoinducers, which are communicatory molecules that can induce conformist actions among a group.Specific autoinducers are used to influence the group in certain ways, upregulating specific functions while suppressing others.
Quorum sensing (QS) is used by bacteria to form biofilms. Quorum sensing is used by bacteria to form biofilms because the process determines if the minimum number of bacteria necessary for biofilm formation are present. The criteria to form a biofilm is dependent on a certain density of bacteria rather than a certain number of bacteria being ...
As opposed to quorum sensing, quorum quenching, prevents bacterial communication and influences their gene expression. Targets of the quorum quenching are the signal molecules, the biosynthetic machinery of signal molecules, and the regulatory proteins that perceive these signal molecules with the AHL degradation via AHL degrading enzymes and ...
Autoinducer-2 (AI-2) is a furanosyl borate diester or tetrahydroxy furan (species dependent) that—as the name suggests—is an autoinducer, a member of a family of signaling molecules used in quorum sensing. [1] AI-2 is one of only a few known biomolecules incorporating boron.
Ajoene / ˈ ɑː h oʊ. iː n / is an organosulfur compound found in garlic (Allium sativum) extracts. It is a colorless liquid that contains sulfoxide and disulfide functional groups. The name [ 1 ] (and pronunciation) is derived from "ajo", the Spanish word for garlic.
Qrr (Quorum regulatory RNA) [1] is a small non-coding RNA that is thought to be involved in the regulation of quorum sensing in Vibrio species. The use of small RNAs for vital functions like metabolism, infection cycling, and stress response is ubiquitous among bacteria. [2]
Regulation of gene expression can occur through cell-cell communication or quorum sensing (QS) via the production of small molecules called autoinducers that are released into the external environment. These signals, when reaching specific concentrations correlated with specific population cell densities, activate their respective regulators ...
In unicellular organisms such as bacteria, signaling can be used to 'activate' peers from a dormant state, enhance virulence, defend against bacteriophages, etc. [46] In quorum sensing, which is also found in social insects, the multiplicity of individual signals has the potentiality to create a positive feedback loop, generating coordinated ...