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J Bacteriol. 2007 Nov;189(22):8387-91. Epub 2007 Sep 7.

Transcriptome analysis of the Vibrio fischeri LuxR-LuxI regulon.

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  • 1Department of Microbiology, University of Iowa, Iowa City, Iowa 52242, USA.

Abstract

The Vibrio fischeri quorum-sensing signal N-3-oxohexanoyl-l-homoserine lactone (3OC6-HSL) activates expression of the seven-gene luminescence operon. We used microarrays to unveil 18 additional 3OC6-HSL-controlled genes, 3 of which had been identified by other means previously. We show most of these genes are regulated by the 3OC6-HSL-responsive transcriptional regulator LuxR directly. This demonstrates that V. fischeri quorum sensing regulates a substantial number of genes other than those involved in light production.

PMID:
17827287
[PubMed - indexed for MEDLINE]
PMCID:
PMC2168698
Free PMC Article
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