Evidence map›Paper›PMID 30120864›Full record

ArticlePlant biotechnology journal2019

Expression of the Arabidopsis thaliana immune receptor EFR in Medicago truncatula reduces infection by a root pathogenic bacterium, but not nitrogen-fixing rhizobial symbiosis.

Sebastian Pfeilmeier, Jeoffrey George, Arry Morel, Sonali Roy, Matthew Smoker, Lena Stransfeld, J Allan Downie, Nemo Peeters, Jacob G Malone, Cyril Zipfel

Open access · goldAbstract read
In one paragraph

Article in Plant biotechnology journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
6.8field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.

  1. Root colonization by beneficial rhizobacteria.FEMS microbiology reviews · 2024
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. All Roads Lead to Rome: Pathways to Engineering Disease Resistance in Plants.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  8. Article
  9. Article
  10. The Emerging Role ofPlants (Basel, Switzerland) · 2024
    Review
  11. Article
  12. Legumes Regulate Symbiosis with Rhizobia via Their Innate Immune System.International journal of molecular sciences · 2023
    Review
  13. Article
  14. Review
  15. Article
  16. PairedProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Transgenic Improvement for Biotic Resistance of Crops.International journal of molecular sciences · 2022
    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

10 authors at 4 institutions in 3 countries.

Sebastian PfeilmeierThe Sainsbury Laboratory, Norwich Research Park, Norwich, UK.
Jeoffrey GeorgeThe Sainsbury Laboratory, Norwich Research Park, Norwich, UK.
Arry MorelINRA, Laboratoire des Interactions Plantes Micro-organismes (LIPM), UMR441, Castanet-Tolosan, France.
Sonali RoyJohn Innes Centre, Norwich Research Park, Norwich, UK.
Matthew SmokerThe Sainsbury Laboratory, Norwich Research Park, Norwich, UK.
Lena StransfeldThe Sainsbury Laboratory, Norwich Research Park, Norwich, UK.
J Allan DownieJohn Innes Centre, Norwich Research Park, Norwich, UK.
Nemo PeetersINRA, Laboratoire des Interactions Plantes Micro-organismes (LIPM), UMR441, Castanet-Tolosan, France.
Jacob G MaloneJohn Innes Centre, Norwich Research Park, Norwich, UK.
Cyril ZipfelThe Sainsbury Laboratory, Norwich Research Park, Norwich, UK.ORCID 0000-0003-4935-8583
John Innes Centre · GBCentre National de la Recherche Scientifique · FRNorwich Research Park · GBUniversity of Zurich · CH

Funding

BBSRC Institute Strategic Program BB/J004553/1Gatsby Charitable FoundationLaboratoire d'Excellence (LABEX) TULIP ANR-10-LABX-41Norwich Research Park
6 · The paper itself

Abstract

Interfamily transfer of plant pattern recognition receptors (PRRs) represents a promising biotechnological approach to engineer broad-spectrum, and potentially durable, disease resistance in crops. It is however unclear whether new recognition specificities to given pathogen-associated molecular patterns (PAMPs) affect the interaction of the recipient plant with beneficial microbes. To test this in a direct reductionist approach, we transferred the Brassicaceae-specific PRR ELONGATION FACTOR-THERMO UNSTABLE RECEPTOR (EFR), conferring recognition of the bacterial EF-Tu protein, from Arabidopsis thaliana to the legume Medicago truncatula. Constitutive EFR expression led to EFR accumulation and activation of immune responses upon treatment with the EF-Tu-derived elf18 peptide in leaves and roots. The interaction of M. truncatula with the bacterial symbiont Sinorhizobium meliloti is characterized by the formation of root nodules that fix atmospheric nitrogen. Although nodule numbers were slightly reduced at an early stage of the infection in EFR-Medicago when compared to control lines, nodulation was similar in all lines at later stages. Furthermore, nodule colonization by rhizobia, and nitrogen fixation were not compromised by EFR expression. Importantly, the M. truncatula lines expressing EFR were substantially more resistant to the root bacterial pathogen Ralstonia solanacearum. Our data suggest that the transfer of EFR to M. truncatula does not impede root nodule symbiosis, but has a positive impact on disease resistance against a bacterial pathogen. In addition, our results indicate that Rhizobium can either avoid PAMP recognition during the infection process, or is able to actively suppress immune signaling.

Indexed as

SymbiosisArabidopsisArabidopsis ProteinsDisease ResistanceGene Expression Regulation, PlantMedicago truncatulaNitrogen FixationPlant DiseasesPlant Root NodulationPlant RootsPlants, Genetically ModifiedReceptors, Pattern RecognitionSinorhizobium melilotiArabidopsis ProteinsEFR protein, ArabidopsisReceptors, Pattern Recognitionbiotechnologydisease resistanceimmunityPAMPsPRRssymbiosis

Identifiers

PMID30120864
PMCPMC6381793
OpenAlexW2885961707

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.