Evidence map›Paper›PMID 25659382›Full record

ArticlePlant physiology2015

Remodeling of the infection chamber before infection thread formation reveals a two-step mechanism for rhizobial entry into the host legume root hair.

Joëlle Fournier, Alice Teillet, Mireille Chabaud, Sergey Ivanov, Andrea Genre, Erik Limpens, Fernanda de Carvalho-Niebel, David G Barker

Abstract read
In one paragraph

Article in Plant physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing 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

71 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Harnessing Silicon and Nanosilicon Formulations withInternational journal of molecular sciences · 2026
    Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Control of Rhizobia Endosymbiosis by Coupling ER Expansion with Enhanced UPR.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  12. Article
  13. Review
  14. Signaling in Legume-Rhizobia Symbiosis.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Review
  17. Identification and Characterization of Common Bean (Plants (Basel, Switzerland) · 2023
    Article
  18. Article
  19. Article
  20. Article

11 more citing papers are in PubMed but not listed here.

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

8 authors.

Joëlle FournierLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.) joelle.fournier@toulouse.inra.fr.ORCID http://orcid.org/0000-0003-3746-8080
Alice TeilletLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).
Mireille ChabaudLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).
Sergey IvanovLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).
Andrea GenreLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).
Erik LimpensLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).
Fernanda de Carvalho-NiebelLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).
David G BarkerLaboratoire des Interactions Plantes Micro-organismes, Institut National de la Recherche Agronomique (Unité Mixte de Recherche 441), Centre National de la Recherche Scientifique (Unité Mixte de Recherche 2594), F-31320 Castanet-Tolosan, France (J.F., A.T., M.C., F.d.C.-N., D.G.B.);Plant Science, Laboratory of Molecular Biology, Wageningen University, 6708PB Wageningen, The Netherlands (S.I., E.L.); andDipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, 10125 Torino, Italy (A.G.).

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In many legumes, root entry of symbiotic nitrogen-fixing rhizobia occurs via host-constructed tubular tip-growing structures known as infection threads (ITs). Here, we have used a confocal microscopy live-tissue imaging approach to investigate early stages of IT formation in Medicago truncatula root hairs (RHs) expressing fluorescent protein fusion reporters. This has revealed that ITs only initiate 10 to 20 h after the completion of RH curling, by which time major modifications have occurred within the so-called infection chamber, the site of bacterial entrapment. These include the accumulation of exocytosis (M. truncatula Vesicle-Associated Membrane Protein721e)- and cell wall (M. truncatula EARLY NODULIN11)-associated markers, concomitant with radial expansion of the chamber. Significantly, the infection-defective M. truncatula nodule inception-1 mutant is unable to create a functional infection chamber. This underlines the importance of the NIN-dependent phase of host cell wall remodeling that accompanies bacterial proliferation and precedes IT formation, and leads us to propose a two-step model for rhizobial infection initiation in legume RHs.

Indexed as

BiomarkersCell WallGenes, ReporterMedicago truncatulaModels, BiologicalMutationPlant ProteinsPlant RootsSinorhizobium melilotiSymbiosisBiomarkersPlant Proteins

Identifiers

PMID25659382
PMCPMC4378154

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.