Evidence map›Paper›PMID 33941900›Full record

ArticleNature microbiology2021

A cell surface-exposed protein complex with an essential virulence function in Ustilago maydis.

Nicole Ludwig, Stefanie Reissmann, Kerstin Schipper, Carla Gonzalez, Daniela Assmann, Timo Glatter, Marino Moretti, Lay-Sun Ma, Karl-Heinz Rexer, Karen Snetselaar and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Nature microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
11.5field-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

25 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Induction of Ustilago maydis Appressorium and Filamentation.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  6. Proteomic Strategies on the Management of Phytopathogenic Fungi.Journal of fungi (Basel, Switzerland) · 2025
    Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Fungal effectors: past, present, and future.Current opinion in microbiology · 2024
    Review
  12. Article
  13. Review
  14. Global Gene Expression of Post-Senescent Telomerase-NegativeJournal of fungi (Basel, Switzerland) · 2023
    Article
  15. Article
  16. Article
  17. Article
  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

11 authors at 4 institutions in 3 countries.

Nicole LudwigDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Stefanie ReissmannDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Kerstin SchipperDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Carla GonzalezDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Daniela AssmannDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Timo GlatterMass Spectrometry and Proteomics, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Marino MorettiDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Lay-Sun MaDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Karl-Heinz RexerDepartment of Evolutionary Ecology of Plants, Philipps-Universität Marburg, Marburg, Germany.
Karen SnetselaarDepartment of Biology, Saint Joseph's University, Philadelphia, PA, USA.
Regine KahmannDepartment of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany. kahmann@mpi-marburg.mpg.de.ORCID http://orcid.org/0000-0001-7779-7837
Max Planck Institute for Terrestrial Microbiology · DEInstitute of Plant and Microbial Biology, Academia Sinica · TWPhilipps University of Marburg · DESaint Joseph's University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plant pathogenic fungi colonizing living plant tissue secrete a cocktail of effector proteins to suppress plant immunity and reprogramme host cells. Although many of these effectors function inside host cells, delivery systems used by pathogenic bacteria to translocate effectors into host cells have not been detected in fungi. Here, we show that five unrelated effectors and two membrane proteins from Ustilago maydis, a biotrophic fungus causing smut disease in corn, form a stable protein complex. All seven genes appear co-regulated and are only expressed during colonization. Single mutants arrest in the epidermal layer, fail to suppress host defence responses and fail to induce non-host resistance, two reactions that likely depend on translocated effectors. The complex is anchored in the fungal membrane, protrudes into host cells and likely contacts channel-forming plant plasma membrane proteins. Constitutive expression of all seven complex members resulted in a surface-exposed form in cultured U. maydis cells. As orthologues of the complex-forming proteins are conserved in smut fungi, the complex may become an interesting fungicide target.

Indexed as

BasidiomycotaFungal ProteinsGene Expression Regulation, FungalPlant DiseasesVirulenceZea maysFungal Proteins

Identifiers

PMID33941900
PMCPMC8159752
OpenAlexW3158244194

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.