Evidence map›Paper›PMID 22742196›Full record

ArticleMolecular microbiology2012

A complex LuxR-LuxI type quorum sensing network in a roseobacterial marine sponge symbiont activates flagellar motility and inhibits biofilm formation.

Jindong Zan, Elisha M Cicirelli, Naglaa M Mohamed, Hiruy Sibhatu, Stephanie Kroll, Okhee Choi, Ohkee Choi, Charis L Uhlson, Christina L Wysoczynski, Christina L Wysoczinski and 4 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
10.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 79 citations in OpenAlex.

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  16. Review
  17. Quorum Sensing System ofFrontiers in microbiology · 2018
    Article
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4 · The record

Corrections and comments

  • Erratum issued
    Choi, Ohkee [corrected to Choi, Okhee]; Wysoczinski, Christina L [corrected to Wysoczynski, Christina L]
5 · Who and what money

Authors and funding

14 authors at 6 institutions in 2 countries.

Jindong ZanInstitute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD 21202, USA.
Elisha M Cicirelli
Naglaa M Mohamed
Hiruy Sibhatu
Stephanie Kroll
Okhee Choi
Ohkee Choi
Charis L Uhlson
Christina L Wysoczynski
Christina L Wysoczinski
Robert C Murphy
Mair E A Churchill
Russell T Hill
Clay Fuqua
University of Maryland, Baltimore · USCayman Chemical (United States) · USGyeongsang National University · KRR&D Systems (United States) · USUniversity of California, San Diego · USUniversity of Maryland Center for Environmental Science · US

Funding

STEROL LIPIDSU54GM069338 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DENNIS, EDWARD A · 2003 to 2013
$72.2M
Molecular Basis of Bacterial Quorum Sensing Gene RegulationR56AI081872 · NIAID · UNIVERSITY OF COLORADO DENVER · PI CHURCHILL, MAIR E · 2010 to 2010
$404k
NIAID NIH HHS R56 AI081872NIGMS NIH HHS GM069338NIGMS NIH HHS U54 GM069338
6 · The paper itself

Abstract

Bacteria isolated from marine sponges, including the Silicibacter-Ruegeria (SR) subgroup of the Roseobacter clade, produce N-acylhomoserine lactone (AHL) quorum sensing signal molecules. This study is the first detailed analysis of AHL quorum sensing in sponge-associated bacteria, specifically Ruegeria sp. KLH11, from the sponge Mycale laxissima. Two pairs of luxR and luxI homologues and one solo luxI homologue were identified and designated ssaRI, ssbRI and sscI (sponge-associated symbiont locus A, B and C, luxR or luxI homologue). SsaI produced predominantly long-chain 3-oxo-AHLs and both SsbI and SscI specified 3-OH-AHLs. Addition of exogenous AHLs to KLH11 increased the expression of ssaI but not ssaR, ssbI or ssbR, and genetic analyses revealed a complex interconnected arrangement between SsaRI and SsbRI systems. Interestingly, flagellar motility was abolished in the ssaI and ssaR mutants, with the flagellar biosynthesis genes under strict SsaRI control, and active motility only at high culture density. Conversely, ssaI and ssaR mutants formed more robust biofilms than wild-type KLH11. AHLs and the ssaI transcript were detected in M. laxissima extracts, suggesting that AHL signalling contributes to the decision between motility and sessility and that it may also facilitate acclimation to different environments that include the sponge host.

Indexed as

4-ButyrolactoneAnimalsBacterial ProteinsBiofilmsGene Expression Regulation, BacterialPoriferaQuorum SensingRoseobacterSignal Transduction4-ButyrolactoneBacterial Proteinshomoserine lactone

Identifiers

PMID22742196
PMCPMC3429658
OpenAlexW2158696729

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.