Evidence map›Paper›PMID 31368598›Full record

ArticleThe EMBO journal2019

Microtubule number and length determine cellular shape and function in Plasmodium.

Benjamin Spreng, Hannah Fleckenstein, Patrick Kübler, Claudia Di Biagio, Madlen Benz, Pintu Patra, Ulrich S Schwarz, Marek Cyrklaff, Friedrich Frischknecht

Abstract read
In one paragraph

Article in The EMBO journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
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  4. Review
  5. The essential function of the apical polar ring during the blood stage ofbioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. Review
  8. Review
  9. Microtubule inner proteins ofProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Luminal acetylation of microtubules is not essential forMicrobial cell (Graz, Austria) · 2025
    Article
  11. TBCC Domain-Containing Protein Regulates Sporulation and Virulence ofInternational journal of molecular sciences · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
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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.

Benjamin SprengIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.
Hannah FleckensteinIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.
Patrick KüblerIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.ORCID 0000-0002-6079-5103
Claudia Di BiagioIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.ORCID 0000-0001-9096-3166
Madlen BenzIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.
Pintu PatraInstitute for Theoretical Physics and Bioquant, Heidelberg University, Heidelberg, Germany.ORCID 0000-0002-2275-3738
Ulrich S SchwarzInstitute for Theoretical Physics and Bioquant, Heidelberg University, Heidelberg, Germany.ORCID 0000-0003-1483-640X
Marek CyrklaffIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.
Friedrich FrischknechtIntegrative Parasitology, Center for Infectious Diseases, Heidelberg University Medical School, Heidelberg, Germany.ORCID 0000-0002-8332-6668

Funding

Deutsche Forschungsgemeinschaft SFB 1129EC|FP7|FP7 Ideas: European Research Council FP7 Ideas StG 281719Human Frontier Science Program HFSP RGY0066
6 · The paper itself

Abstract

Microtubules are cytoskeletal filaments essential for many cellular processes, including establishment and maintenance of polarity, intracellular transport, division and migration. In most metazoan cells, the number and length of microtubules are highly variable, while they can be precisely defined in some protozoan organisms. However, in either case the significance of these two key parameters for cells is not known. Here, we quantitatively studied the impact of modulating microtubule number and length in Plasmodium, the protozoan parasite causing malaria. Using a gene deletion and replacement strategy targeting one out of two α-tubulin genes, we show that chromosome segregation proceeds in the oocysts even in the absence of microtubules. However, fewer and shorter microtubules severely impaired the formation, motility and infectivity of Plasmodium sporozoites, the forms transmitted by the mosquito, which usually contain 16 microtubules. We found that α-tubulin expression levels directly determined the number of microtubules, suggesting a high nucleation barrier as supported by a mathematical model. Infectious sporozoites were only formed in parasite lines featuring at least 10 microtubules, while parasites with 9 or fewer microtubules failed to transmit.

Indexed as

AnimalsGene DeletionMalariaMiceModels, TheoreticalPlasmodiumProtozoan ProteinsSporozoitesTubulinProtozoan ProteinsTubulincell morphogenesisinfectionmalariamicrotubulessporozoite

Identifiers

PMID31368598
PMCPMC6669926

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Registered trials

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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.