Evidence map›Paper›PMID 21217008›Full record

ArticleJournal of bacteriology2011

Inactivation of σE and σG in Clostridium acetobutylicum illuminates their roles in clostridial-cell-form biogenesis, granulose synthesis, solventogenesis, and spore morphogenesis.

Bryan P Tracy, Shawn W Jones, Eleftherios T Papoutsakis

Abstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
13.1field-weighted citation impact, top 1% 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

36 citing papers in PubMed, 78 citations in OpenAlex.

  1. Genetic tools for the electrotrophApplied and environmental microbiology · 2024
    Article
  2. Article
  3. Article
  4. Article
  5. Sporulation in solventogenic and acetogenic clostridia.Applied microbiology and biotechnology · 2021
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Transcriptomic and Phenotypic Analysis of aFrontiers in microbiology · 2020
    Article
  11. Review
  12. σScientific reports · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Chemical and Stress Resistances ofFrontiers in microbiology · 2016
    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

3 authors at 3 institutions in 1 country.

Bryan P TracyDepartment of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208-31201, USA. BryanTracy2009@u.northwestern.edu
Shawn W Jones
Eleftherios T Papoutsakis
Biotechnology Institute · USElcriton (United States) · USNorthwestern University · US

Funding

Developing Capacity to Evaluate Training Programs via Development of Human, Institutional and Social CapitalT32GM008449 · NIGMS · NORTHWESTERN UNIVERSITY · PI LEONARD, JOSHUA NATHANIEL · 1993 to 2023
$7.8M
NIGMS NIH HHS T32 GM008449NIGMS NIH HHS T32-GM08449
6 · The paper itself

Abstract

Central to all clostridia is the orchestration of endospore formation (i.e., sporulation) and, specifically, the roles of differentiation-associated sigma factors. Moreover, there is considerable applied interest in understanding the roles of these sigma factors in other stationary-phase phenomena, such as solvent production (i.e., solventogenesis). Here we separately inactivated by gene disruption the major sporulation-specific sigma factors, σ(E) and σ(G), and performed an initial analysis to elucidate their roles in sporulation-related morphogenesis and solventogenesis in Clostridium acetobutylicum. The terminal differentiation phenotype for the sigE inactivation mutant stalled in sporulation prior to asymmetric septum formation, appeared vegetative-like often with an accumulation of DNA at both poles, frequently exhibited two longitudinal internal membranes, and did not synthesize granulose. The sigE inactivation mutant did produce the characteristic solvents (i.e., butanol and acetone), but the extent of solventogenesis was dependent on the physiological state of the inoculum. The sigG inactivation mutant stalled in sporulation during endospore maturation, exhibiting engulfment and partial cortex and spore coat formation. Lastly, the sigG inactivation mutant did produce granulose and exhibited wild-type-like solventogenesis.

Indexed as

Gene Expression Regulation, BacterialAcetoneButanolsClostridium acetobutylicumGene Knockout TechniquesPolysaccharidesSigma FactorSpores, BacterialTranscription, GeneticAcetoneButanolsgranulosePolysaccharidesSigma Factor

Identifiers

PMID21217008
PMCPMC3067626
OpenAlexW2156522711

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.