Evidence map›Paper›PMID 31827088›Full record

ArticleNature communications2019

Phagocytosis-like cell engulfment by a planctomycete bacterium.

Takashi Shiratori, Shigekatsu Suzuki, Yukako Kakizawa, Ken-Ichiro Ishida

Abstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
–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

53 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Cellular Mechanisms Enabling Mitochondria Transfer and Transplantation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
  3. Article
  4. Article
  5. Microbe Profile:Microbiology (Reading, England) · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Statistical and mechanical analysis of multi-pseudopodial locomotion in a testate amoeba, Arcella sp.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2026
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Quantifying the fitness contribution of phagocytosis.bioRxiv : the preprint server for biology · 2025
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Takashi ShiratoriFaculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-0053, Japan. tshiratori@jamstec.go.jp.ORCID http://orcid.org/0000-0003-1629-8254
Shigekatsu SuzukiNational Institute for Environmental Studies, Tsukuba, Ibaraki, 305-0053, Japan.ORCID http://orcid.org/0000-0002-6388-8655
Yukako KakizawaFaculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-0053, Japan.
Ken-Ichiro IshidaFaculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-0053, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phagocytosis is a key eukaryotic feature, conserved from unicellular protists to animals, that enabled eukaryotes to feed on other organisms. It could also be a driving force behind endosymbiosis, a process by which α-proteobacteria and cyanobacteria evolved into mitochondria and plastids, respectively. Here we describe a planctomycete bacterium, 'Candidatus Uab amorphum', which is able to engulf other bacteria and small eukaryotic cells through a phagocytosis-like mechanism. Observations via light and electron microscopy suggest that this bacterium digests prey cells in specific compartments. With the possible exception of a gene encoding an actin-like protein, analysis of the 'Ca. Uab amorphum' genomic sequence does not reveal any genes homologous to eukaryotic phagocytosis genes, suggesting that cell engulfment in this microorganism is probably not homologous to eukaryotic phagocytosis. The discovery of this "phagotrophic" bacterium expands our understanding of the cellular complexity of prokaryotes, and may be relevant to the origin of eukaryotic cells.

Indexed as

PhagocytosisAlphaproteobacteriaBacterial ProteinsBiological EvolutionGenome, BacterialPhylogenyBacterial Proteins

Identifiers

PMID31827088
PMCPMC6906331

What OpenQuestion holds

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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.