Evidence map›Paper›PMID 10572118›Full record

ArticleJournal of bacteriology1999

AlgT (sigma22) controls alginate production and tolerance to environmental stress in Pseudomonas syringae.

L M Keith, C L Bender

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
7.3field-weighted citation impact, top 3% 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

40 citing papers in PubMed, 111 citations in OpenAlex.

  1. Article
  2. AlgU mediates hyperosmotic tolerance inApplied and environmental microbiology · 2024
    Article
  3. Cytoplasmic molecular chaperones in Pseudomonas species.Journal of microbiology (Seoul, Korea) · 2022
    Review
  4. Article
  5. Regulation of theMicroorganisms · 2021
    Review
  6. Pseudomonas syringae: what it takes to be a pathogen.Nature reviews. Microbiology · 2018
    Review
  7. Article
  8. Article
  9. Article
  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 at 1 institution in 1 country.

L M KeithDepartment of Entomology and Plant Pathology, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
C L Bender
Oklahoma State University · US

Funding

PSEUDOMONAS SYRINGAE VIRULENCE AND ALGINATE SYNTHESISR01AI043311 · NIAID · OKLAHOMA STATE UNIVERSITY STILLWATER · PI BENDER, CAROL L · 1998 to 2000
$150k
NIAID NIH HHS AI 43311-01
6 · The paper itself

Abstract

Pseudomonas aeruginosa and the phytopathogen P. syringae produce the exopolysaccharide alginate, which is a copolymer of D-mannuronic and L-guluronic acids. One of the key regulatory genes controlling alginate biosynthesis in P. aeruginosa is algT, which encodes the alternate sigma factor, sigma(22). In the present study, the algT gene product from P. syringae pv. syringae showed 90% amino acid identity with its P. aeruginosa counterpart, and sequence analysis of the region flanking algT in P. syringae revealed the presence of nadB, mucA, and mucB in an arrangement virtually identical to that of P. aeruginosa. An algT mutant of P. syringae was defective in alginate production but could be complemented with wild-type algT from P. syringae or P. aeruginosa when expressed in trans. The algT mutant also displayed increased sensitivity to heat, paraquat, and hydrogen peroxide (H(2)O(2)); the latter two compounds are known to generate reactive oxygen intermediates. Signals for activation of algT gene expression in P. syringae were investigated with an algT::uidA transcriptional fusion. Like that in P. aeruginosa, algT transcription in P. syringae was activated by heat shock. However, algT expression in P. syringae was also stimulated by osmotic stress and by exposure to paraquat, H(2)O(2), and copper sulfate. The latter two compounds are frequently encountered during colonization of plant tissue and may be unique signals for algT activation in P. syringae.

Indexed as

Sigma FactorAlginatesAmino Acid SequenceBacterial ProteinsBase SequenceCloning, MolecularDNA Transposable ElementsGene Expression Regulation, BacterialGenetic Complementation TestMolecular Sequence DataMultigene FamilyMutationOxidative StressPhenotypePseudomonasSequence Homology, Amino AcidAlginatesAlgU protein, Pseudomonas aeruginosaBacterial ProteinsDNA Transposable ElementsSigma FactorTranscription Factors

Identifiers

PMID10572118
PMCPMC103677
OpenAlexW2073845634

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.