Evidence map›Paper›PMID 10633091›Full record

ArticleJournal of bacteriology2000

Environmental regulation of exopolysaccharide production in Sinorhizobium meliloti.

K E Mendrygal, J E González

Abstract read
In one paragraph

Article in Journal of bacteriology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
–field-weighted citation impact
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

52 citing papers in PubMed.

  1. Article
  2. Genetic Engineering ofMicroorganisms · 2023
    Article
  3. Review
  4. Article
  5. Exopolysaccharide Biosynthesis inInternational journal of molecular sciences · 2023
    Article
  6. Article
  7. Transcriptomic response ofFrontiers in microbiology · 2023
    Article
  8. Canavanine utilizationRSC chemical biology · 2022
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

2 authors.

K E MendrygalDepartment of Molecular and Cell Biology, University of Texas at Dallas, Richardson, Texas 75083-0688, USA.
J E González

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exopolysaccharide production by Sinorhizobium meliloti is required for invasion of root nodules on alfalfa and successful establishment of a nitrogen-fixing symbiosis between the two partners. S. meliloti wild-type strain Rm1021 requires production of either succinoglycan, a polymer of repeating octasaccharide subunits, or EPS II, an exopolysaccharide of repeating dimer subunits. The reason for the production of two functional exopolysaccharides is not clear. Earlier reports suggested that low-phosphate conditions stimulate the production of EPS II in Rm1021. We found that phosphate concentrations determine which exopolysaccharide is produced by S. meliloti. The low-phosphate conditions normally found in the soil (1 to 10 microM) stimulate EPS II production, while the high-phosphate conditions inside the nodule (20 to 100 mM) block EPS II synthesis and induce the production of succinoglycan. Interestingly, the EPS II produced by S. meliloti in low-phosphate conditions does not allow the invasion of alfalfa nodules. We propose that this invasion phenotype is due to the lack of the active molecular weight fraction of EPS II required for nodule invasion. An analysis of the function of PhoB in this differential exopolysaccharide production is presented.

Indexed as

Bacterial ProteinsGene Expression Regulation, BacterialMolecular WeightOrganophosphatesPolysaccharides, BacterialSinorhizobium melilotiBacterial ProteinsEPSI polysaccharideOrganophosphatesPhoB protein, BacteriaPolysaccharides, Bacterialsuccinoglycan

Identifiers

PMID10633091
PMCPMC94320

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.