Evidence map›Paper›PMID 19672290›Full record

ArticlePloS one2009

The secret life of the anthrax agent Bacillus anthracis: bacteriophage-mediated ecological adaptations.

Raymond Schuch, Vincent A Fischetti

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

88 citing papers in PubMed, 176 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Re-evaluating what makes a phage unsuitable for therapy.npj antimicrobials and resistance · 2025
    Review
  6. Article
  7. Article
  8. Soil viral diversity, ecology and climate change.Nature reviews. Microbiology · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Archaeal tyrosine recombinases.FEMS microbiology reviews · 2021
    Review
  17. Article
  18. Article
  19. Review
  20. Review

28 more citing papers are in PubMed but not listed here.

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.

Raymond SchuchThe Rockefeller University, New York, NY, USA. schuchr@rockefeller.edu
Vincent A Fischetti
Rockefeller University · US

Funding

Isolaton of new phage enzymes to kill B. anthracisR01AI057472 · NIAID · ROCKEFELLER UNIVERSITY · PI FISCHETTI, VINCENT A. · 2004 to 2014
$3.9M
NIAID NIH HHS AI057472NIAID NIH HHS R01 AI057472
6 · The paper itself

Abstract

Ecological and genetic factors that govern the occurrence and persistence of anthrax reservoirs in the environment are obscure. A central tenet, based on limited and often conflicting studies, has long held that growing or vegetative forms of Bacillus anthracis survive poorly outside the mammalian host and must sporulate to survive in the environment. Here, we present evidence of a more dynamic lifecycle, whereby interactions with bacterial viruses, or bacteriophages, elicit phenotypic alterations in B. anthracis and the emergence of infected derivatives, or lysogens, with dramatically altered survival capabilities. Using both laboratory and environmental B. anthracis strains, we show that lysogeny can block or promote sporulation depending on the phage, induce exopolysaccharide expression and biofilm formation, and enable the long-term colonization of both an artificial soil environment and the intestinal tract of the invertebrate redworm, Eisenia fetida. All of the B. anthracis lysogens existed in a pseudolysogenic-like state in both the soil and worm gut, shedding phages that could in turn infect non-lysogenic B. anthracis recipients and confer survival phenotypes in those environments. Finally, the mechanism behind several phenotypic changes was found to require phage-encoded bacterial sigma factors and the expression of at least one host-encoded protein predicted to be involved in the colonization of invertebrate intestines. The results here demonstrate that during its environmental phase, bacteriophages provide B. anthracis with alternatives to sporulation that involve the activation of soil-survival and endosymbiotic capabilities.

Indexed as

EcologyBacillus anthracisBacteriophagesLysogenyMicroscopy, Electron, TransmissionPolysaccharidesSoil MicrobiologySpores, BacterialSymbiosisPolysaccharides

Identifiers

PMID19672290
PMCPMC2716549
OpenAlexW1965360728

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.