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Article

Induction and loss of Ti plasmid conjugative competence in response to the acyl-homoserine lactone quorum-sensing signal.

Journal of bacteriology - 1 Jul 2008

Su Shengchang, Khan Sharik R, Farrand Stephen K

Abstract excerpt

Conjugative transfer of the Ti plasmids of Agrobacterium tumefaciens is controlled by a quorum-sensing system composed of TraR and its signal N-(3-oxo-octanoyl)-L-homoserine lactone. This system is, in turn, controlled by the conjugative opines produced by crown gall tumors induced on plants by the bacteria. Using nonpolar traI mutants, we examined the kinetics of induction of conjugative transfer in response to...

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Source

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Identifiers

PMID: 18203831
DOI: 10.1128/JB.01684-07
PMCID: PMC2446815

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Induction and loss of Ti plasmid conjugative competence in response to the acyl-homoserine lactone quorum-sensing signal.PMID 18203831Read ↗

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The Agrobacterium tumefaciens rnd homolog is required for TraR-mediated quorum-dependent activation of Ti plasmid tra gene expression.Semantic proximity Read ↗

Quorum-sensing antiactivator TraM forms a dimer that dissociates to inhibit TraR.Semantic proximity Read ↗

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TraM of plasmid R1 controls transfer gene expression as an integrated control element in a complex regulatory network.Semantic proximity Read ↗

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Identification of two quorum-sensing systems in Sinorhizobium meliloti.Semantic proximity Read ↗

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