Evidence map›Paper›PMID 16452422›Full record

ArticleJournal of bacteriology2006

Inhibition of cell division suppresses heterocyst development in Anabaena sp. strain PCC 7120.

Samer Sakr, Robert Jeanjean, Cheng-Cai Zhang, Tania Arcondeguy

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 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
1.8field-weighted citation impact, top 16% 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, 60 citations in OpenAlex.

  1. Article
  2. A proteolytic pathway coordinates cell division and heterocyst differentiation in the cyanobacteriumProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  3. Article
  4. Article
  5. Functions of the Essential GeneFrontiers in microbiology · 2021
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. An amidase is required for proper intercellular communication in the filamentous cyanobacteriumProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Biased inheritance of the protein PatN frees vegetative cells to initiate patterned heterocyst differentiation.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  16. Article
  17. Cyanobacterial heterocysts.Cold Spring Harbor perspectives in biology · 2010
    Review
  18. Article
  19. Review
  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

4 authors at 2 institutions in 1 country.

Samer SakrLaboratoire de Chimie Bactérienne, CNRS UPR9043, Institut de Biologie Structurale et Microbiologie, 31 Chemin Joseph Aiguier, 13402 Marseille cedex 20, France.
Robert Jeanjean
Cheng-Cai Zhang
Tania Arcondeguy
Centre National de la Recherche Scientifique · FRLaboratoire de Chimie Bactérienne · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

When the filamentous cyanobacterium Anabaena PCC 7120 is exposed to combined nitrogen starvation, 5 to 10% of the cells along each filament at semiregular intervals differentiate into heterocysts specialized in nitrogen fixation. Heterocysts are terminally differentiated cells in which the major cell division protein FtsZ is undetectable. In this report, we provide molecular evidence indicating that cell division is necessary for heterocyst development. FtsZ, which is translationally fused to the green fluorescent protein (GFP) as a reporter, is found to form a ring structure at the mid-cell position. SulA from Escherichia coli inhibits the GTPase activity of FtsZ in vitro and prevents the formation of FtsZ rings when expressed in Anabaena PCC 7120. The expression of sulA arrests cell division and suppresses heterocyst differentiation completely. The antibiotic aztreonam, which is targeted to the FtsI protein necessary for septum formation, has similar effects on both cell division and heterocyst differentiation, although in this case, the FtsZ ring is still formed. Therefore, heterocyst differentiation is coupled to cell division but independent of the formation of the FtsZ ring. Consistently, once the inhibitory pressure of cell division is removed, cell division should take place first before heterocyst differentiation resumes at a normal frequency. The arrest of cell division does not affect the accumulation of 2-oxoglutarate, which triggers heterocyst differentiation. Consistently, a nonmetabolizable analogue of 2-oxoglutarate does not rescue the failure of heterocyst differentiation when cell division is blocked. These results suggest that the control of heterocyst differentiation by cell division is independent of the 2-oxoglutarate signal.

Indexed as

AnabaenaBacterial ProteinsCell DivisionCytoskeletal ProteinsKetoglutaric AcidsBacterial ProteinsCytoskeletal ProteinsFtsZ protein, BacteriaKetoglutaric Acids

Identifiers

PMID16452422
PMCPMC1367218
OpenAlexW2104340922

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.