Evidence map›Paper›PMID 16714597›Full record

ArticleInfection and immunity2006

Inorganic phosphate induces spore morphogenesis and enterotoxin production in the intestinal pathogen Clostridium perfringens.

Valeria A Philippe, Marcelo B Méndez, I-Hsiu Huang, Lelia M Orsaria, Mahfuzur R Sarker, Roberto R Grau

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Sporulation Abilities and Heat Resistance ofFoods (Basel, Switzerland) · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Enterotoxic Clostridia:Microbiology spectrum · 2018
    Article
  13. Effects of Bile Acids and Nisin on the Production of Enterotoxin byInternational journal of microbiology · 2018
    Article
  14. Review
  15. Article
  16. Review
  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

6 authors at 3 institutions in 2 countries.

Valeria A PhilippeFacultad de Ciencias Bioquímicas y Farmacéuticas, Departamento de Microbiología, Suipacha 531, Rosario 2000, Argentina.
Marcelo B Méndez
I-Hsiu Huang
Lelia M Orsaria
Mahfuzur R Sarker
Roberto R Grau
Consejo Nacional de Investigaciones Científicas y Técnicas · ARInstituto de Biología Molecular y Celular de Rosario · AROregon State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clostridium perfringens enterotoxin (CPE) is an important virulence factor for food poisoning and non-food borne gastrointestinal (GI) diseases. Although CPE production is strongly regulated by sporulation, the nature of the signal(s) triggering sporulation remains unknown. Here, we demonstrated that inorganic phosphate (Pi), and not pH, constitutes an environmental signal inducing sporulation and CPE synthesis. In the absence of Pi-supplementation, C. perfringens displayed a spo0A phenotype, i.e., absence of polar septation and DNA partitioning in cells that reached the stationary phase of growth. These results received support from our Northern blot analyses which demonstrated that Pi was able to counteract the inhibitory effect of glucose at the onset of sporulation and induced spo0A expression, indicating that Pi acts as a key signal triggering spore morphogenesis. In addition to being the first study reporting the nature of a physiological signal triggering sporulation in clostridia, these findings have relevance for the development of antisporulation drugs to prevent or treat CPE-mediated GI diseases in humans.

Indexed as

Clostridium perfringensCulture MediaEnterotoxinsHydrogen-Ion ConcentrationMorphogenesisPhosphatesSpores, BacterialCulture Mediaenterotoxin, ClostridiumEnterotoxinsPhosphates

Identifiers

PMID16714597
PMCPMC1479234
OpenAlexW2126019224

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.