Atypical rhizobia trigger nodulation and pathogenesis on the same legume hosts
The emergence of commensalism and mutualism often derives from ancestral parasitism. However, in the case of rhizobium-legume interactions, bacterial strains displaying both pathogenic and nodulation features on a single host have not been described yet. Here, we isolated such a bacterium from Medicago nodules. On the same plant genotypes, the T4 strain can induce ineffective nodules in a highly competitive way and behave as a harsh parasite triggering plant death. The T4 strain presents this dual ability on multiple legume species of the Inverted Repeat-Lacking Clade, the output of the interaction relying on the developmental stage of the plant. Genomic and phenotypic clustering analysis show that T4 belongs to the nonsymbiotic Ensifer adhaerens group and clusters together with T173, another strain harboring this dual ability. In this work, we identify a bacterial clade that includes rhizobial strains displaying both pathogenic and nodulating abilities on a single legume host.
Authors
- Salim Bougouffa (ORCID: https://orcid.org/0000-0001-9218-6452)
- Chrystel Gibelin
- Fabienne Maillet (ORCID: https://orcid.org/0000-0001-6285-4704)
- Fabienne Vailleau (ORCID: https://orcid.org/0000-0002-6879-2695)
- Abdul Aziz Eida (ORCID: https://orcid.org/0000-0002-1718-3750)
- Laurent Sauviac
- Maged M. Saad (ORCID: https://orcid.org/0000-0002-5655-8674)
- Gautier Bernal (ORCID: https://orcid.org/0000-0002-2253-6397)
- Raphaël Forquet (ORCID: https://orcid.org/0000-0002-7736-5951)
- Virginie Puech‐Pagès (ORCID: https://orcid.org/0000-0003-4113-7970)
- Benjamin Gourion (ORCID: https://orcid.org/0000-0001-5768-6961)
- Elhosseyn Aït-Salem
- Pascal Ratet (ORCID: https://orcid.org/0000-0002-8621-1495)
- Rémi Peyraud (ORCID: https://orcid.org/0000-0002-7580-042X)
- Kévin Magne (ORCID: https://orcid.org/0000-0002-6779-5683)
- Eleonora Rolli (ORCID: https://orcid.org/0000-0002-5814-9735)
- Véronique Gruber (ORCID: https://orcid.org/0000-0002-4877-1803)
- Heribert Hirt (ORCID: https://orcid.org/0000-0003-3119-9633)
- Sophie Massot (ORCID: https://orcid.org/0000-0002-5962-6054)
- Adrien Jugan
- Tifaine Folletti
- Ilona Pires
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Toulouse III - Paul Sabatier (FR)
- Université Fédérale de Toulouse Midi-Pyrénées (FR)
- University of Milan (IT)
- Université Paris Cité (FR)
- AgroParisTech (FR)
- Université Paris-Saclay (FR)
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
- Institut des Sciences des Plantes de Paris Saclay (FR)
- Toulouse Mathematics Institute (FR)
- Institut Jean-Pierre Bourgin (FR)
- Laboratoire des Interactions Plantes Microbes Environnement (FR)
- Laboratoire de Recherche en Sciences Végétales (FR)
- French Clinical Research Infrastructure Network (FR)
- King Abdullah University of Science and Technology (SA)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-10-26
- DOI
- https://doi.org/10.1038/s41467-024-53388-x
- Citations
- 6
- Primary Topic
- Legume Nitrogen Fixing Symbiosis
- Type
- article
- Field-Weighted Citation Impact
- 3.60
Funders
- Agence Nationale de la Recherche
- Centre National de la Recherche Scientifique
- Université de Paris