Evidence map›Paper›PMID 22904285›Full record

ArticleJournal of bacteriology2012

Analysis of the effects of a gerP mutation on the germination of spores of Bacillus subtilis.

Xuan Yi Butzin, Anthony J Troiano, William H Coleman, Keren K Griffiths, Christopher J Doona, Florence E Feeherry, Guiwen Wang, Yong-qing Li, Peter Setlow

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2012. 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
3.7field-weighted citation impact, top 6% 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, 49 citations in OpenAlex.

  1. New insights into the structure-based mechanism ofApplied and environmental microbiology · 2026
    Article
  2. Sporulation at reduced water activity impairs germination kinetics ofApplied and environmental microbiology · 2025
    Article
  3. Review
  4. Article
  5. Identification and characterization of theJournal of bacteriology · 2024
    Article
  6. Review
  7. Interactions ofMicroorganisms · 2021
    Article
  8. Article
  9. Review
  10. Article
  11. Proteins Encoded by theApplied and environmental microbiology · 2018
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

9 authors at 3 institutions in 1 country.

Xuan Yi ButzinDepartment of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington, Connecticut, USA.
Anthony J Troiano
William H Coleman
Keren K Griffiths
Christopher J Doona
Florence E Feeherry
Guiwen Wang
Yong-qing Li
Peter Setlow
UConn Health · USCombat Capabilities Development Command Soldier Center · USEast Carolina University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As previously reported, gerP Bacillus subtilis spores were defective in nutrient germination triggered via various germinant receptors (GRs), and the defect was eliminated by severe spore coat defects. The gerP spores' GR-dependent germination had a longer lag time between addition of germinants and initiation of rapid release of spores' dipicolinic acid (DPA), but times for release of >90% of DPA from individual spores were identical for wild-type and gerP spores. The gerP spores were also defective in GR-independent germination by DPA with its associated Ca(2+) divalent cation (CaDPA) but germinated better than wild-type spores with the GR-independent germinant dodecylamine. The gerP spores exhibited no increased sensitivity to hypochlorite, suggesting that these spores have no significant coat defect. Overexpression of GRs in gerP spores did lead to faster germination via the overexpressed GR, but this was still slower than germination of comparable gerP(+) spores. Unlike wild-type spores, for which maximal nutrient germinant concentrations were between 500 μM and 2 mM for l-alanine and ≤10 mM for l-valine, rates of gerP spore germination increased up to between 200 mM and 1 M l-alanine and 100 mM l-valine, and at 1 M l-alanine, the rates of germination of wild-type and gerP spores with or without all alanine racemases were almost identical. A high pressure of 150 MPa that triggers spore germination by activating GRs also triggered germination of wild-type and gerP spores identically. All these results support the suggestion that GerP proteins facilitate access of nutrient germinants to their cognate GRs in spores' inner membrane.

Indexed as

MutationAlanineBacillus subtilisBacterial ProteinsCalciumCations, DivalentHydrostatic PressurePicolinic AcidsSpores, BacterialTime FactorsValineAlanineBacterial ProteinsCalciumCations, Divalentdipicolinic acidPicolinic AcidsValine

Identifiers

PMID22904285
PMCPMC3486119
OpenAlexW2115300833

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.