Evidence map›Paper›PMID 21821751›Full record

ArticleApplied and environmental microbiology2011

Maturation of released spores is necessary for acquisition of full spore heat resistance during Bacillus subtilis sporulation.

Jose-Luis Sanchez-Salas, Barbara Setlow, Pengfei Zhang, Yong-Qing Li, Peter Setlow

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Effects of levels of purity of spores of twoApplied and environmental microbiology · 2026
    Article
  2. Article
  3. Article
  4. Germination and Heat Resistance ofFoods (Basel, Switzerland) · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. What's new and notable in bacterial spore killing!World journal of microbiology & biotechnology · 2021
    Review
  9. Biofilm and Spore Formation ofAntibiotics (Basel, Switzerland) · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Bacterial Endospores as Phage Genome Carriers and Protective Shells.Applied and environmental microbiology · 2018
    Article
  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

5 authors.

Jose-Luis Sanchez-SalasDepartment of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington, CT 06030-3305, USA.
Barbara Setlow
Pengfei Zhang
Yong-Qing Li
Peter Setlow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The first ∼10% of spores released from sporangia (early spores) during Bacillus subtilis sporulation were isolated, and their properties were compared to those of the total spores produced from the same culture. The early spores had significantly lower resistance to wet heat and hypochlorite than the total spores but identical resistance to dry heat and UV radiation. Early and total spores also had the same levels of core water, dipicolinic acid, and Ca and germinated similarly with several nutrient germinants. The wet heat resistance of the early spores could be increased to that of total spores if early spores were incubated in conditioned sporulation medium for ∼24 h at 37°C (maturation), and some hypochlorite resistance was also restored. The maturation of early spores took place in pH 8 buffer with Ca(2+) but was blocked by EDTA; maturation was also seen with early spores of strains lacking the CotE protein or the coat-associated transglutaminase, both of which are needed for normal coat structure. Nonetheless, it appears to be most likely that it is changes in coat structure that are responsible for the increased resistance to wet heat and hypochlorite upon early spore maturation.

Indexed as

Stress, PhysiologicalBacillus subtilisCalciumHot TemperatureHypochlorous AcidMicrobial ViabilityPicolinic AcidsSpores, BacterialUltraviolet RaysWaterCalciumdipicolinic acidHypochlorous AcidPicolinic AcidsWater

Identifiers

PMID21821751
PMCPMC3187105

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.