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Identification of genes controlled by quorum sensing in Pseudomonas aeruginosa

Open access
Whiteley, Marvin, Lee, Kimberly M., Greenberg, E. P.·1999·Proceedings of the National Academy of Sciences

Abstract

Bacteria communicate with each other to coordinate expression of specific genes in a cell density-dependent fashion, a phenomenon called quorum sensing and response. Although we know that quorum sensing via acyl-homoserine lactone (HSL) signals controls expression of several virulence genes in the human pathogen Pseudomonas aeruginosa , the number and types of genes controlled by quorum sensing have not been studied systematically. We have constructed a library of random insertions in the chromosome of a P. aeruginosa acyl-HSL synthesis mutant by using a transposon containing a promoterless lacZ . This library was screened for acyl-HSL induction of lacZ . Thirty-nine quorum sensing-regulated genes were identified. The genes were organized into classes depending on the pattern of regulation. About half of the genes appear to be in seven operons, some seem organized in large patches on the genome. Many of the quorum sensing-regulated genes code for putative virulence factors or production of secondary metabolites. Many of the genes identified showed a high level of induction by acyl-HSL signaling.

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Metadata

Authors
Whiteley, M., Lee, K. M., & Greenberg, E. P.
Venue
Proceedings of the National Academy of Sciences
Published
1999-11-23
Volume
96
Issue
24
Pages
13904-13909
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2150417163
Cited by
650
References
1
FWCI
9.03
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Identification of genes controlled by quorum sensing in Pseudomonas aeruginosa. https://app.cochat.ai/papers/10.1073/pnas.96.24.13904
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Whiteley, M., Lee, K. M., & Greenberg, E. P. (1999). Identification of genes controlled by quorum sensing in Pseudomonas aeruginosa. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.96.24.13904

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