Evidence map›Paper›PMID 16321947›Full record

ArticleJournal of bacteriology2005

L-Canavanine made by Medicago sativa interferes with quorum sensing in Sinorhizobium meliloti.

Neela D Keshavan, Puneet K Chowdhary, Donovan C Haines, Juan E González

Abstract read
In one paragraph

Article in Journal of bacteriology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

38 citing papers in PubMed, 132 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Role of bacterial quorum sensing in plant growth promotion.World journal of microbiology & biotechnology · 2024
    Review
  5. Review
  6. Soybean-mediated suppression of BjaI/BjaRApplied and environmental microbiology · 2024
    Article
  7. Article
  8. Article
  9. Review
  10. Canavanine utilizationRSC chemical biology · 2022
    Article
  11. Article
  12. Article
  13. Frontiers in microbiology · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Microbial interactions: ecology in a molecular perspective.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2016
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Neela D KeshavanDepartment of Molecular and Cell Biology, University of Texas at Dallas, FO 3.1, Richardson, TX 75083-0688, USA.
Puneet K Chowdhary
Donovan C Haines
Juan E González
The University of Texas at Dallas · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sinorhizobium meliloti is a gram-negative soil bacterium, capable of establishing a nitrogen-fixing symbiosis with its legume host, alfalfa (Medicago sativa). Quorum sensing plays a crucial role in this symbiosis, where it influences the nodulation process and the synthesis of the symbiotically important exopolysaccharide II (EPS II). S. meliloti has three quorum-sensing systems (Sin, Tra, and Mel) that use N-acyl homoserine lactones as their quorum-sensing signal molecule. Increasing evidence indicates that certain eukaryotic hosts involved in symbiotic or pathogenic relationships with gram-negative bacteria produce quorum-sensing-interfering (QSI) compounds that can cross-communicate with the bacterial quorum-sensing system. Our studies of alfalfa seed exudates suggested the presence of multiple signal molecules capable of interfering with quorum-sensing-regulated gene expression in different bacterial strains. In this work, we choose one of these QSI molecules (SWI) for further characterization. SWI inhibited violacein production, a phenotype that is regulated by quorum sensing in Chromobacterium violaceum. In addition, this signal molecule also inhibits the expression of the S. meliloti exp genes, responsible for the production of EPS II, a quorum-sensing-regulated phenotype. We identified this molecule as l-canavanine, an arginine analog, produced in large quantities by alfalfa and other legumes.

Indexed as

CanavanineChromobacteriumGene Expression Regulation, BacterialIndolesMedicago sativaPlant ExtractsPolysaccharides, BacterialSeedsSinorhizobium melilotiCanavanineIndolesPlant ExtractsPolysaccharides, Bacterialviolacein

Identifiers

PMID16321947
PMCPMC1317012
OpenAlexW2118946205

What OpenQuestion holds

Textmetadata
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.