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Surfactin stimulated by pectin molecular patterns and root exudates acts as a key driver of <i>Bacillus</i> -plant mutualistic interaction

Type de document
journalArticle
Langue source
-- Langue source --
Titre
Surfactin stimulated by pectin molecular patterns and root exudates acts as a key driver of <i>Bacillus</i> -plant mutualistic interaction
Titre français
Titre anglais
Auteur(s)
  • HOFF Grégory
  • ARGUELLES-ARIAS Anthony
  • BOUBSI Farah
  • PRSIC Jelena
  • MEYER Thibault
  • IBRAHIM Heba M. M.
  • STEELS Sebastien
  • LUZURIAGA Patricio
  • LEGRAS Aurélien
  • FRANZIL Laurent
  • LEQUART Michelle
  • RAYON Catherine
  • OSORIO Victoria
  • DE PAUW Edwin
  • LARA Yannick
  • DEBOEVER Estelle
  • DE CONINCK Barbara
  • JACQUES Philippe
  • DELEU Magali
  • PETIT Emmanuel
  • VAN WUYTSWINKEL Olivier
  • ONGENA Marc
Editeur(s)
Autre(s)
Id
PPLA2VT4
Version
4285
Url zotero
https://www.zotero.org/groups/agro-fredo-craw/items/PPLA2VT4
Date ajout
22 avril 2021 18:26
Date modification
22 avril 2021 18:26
Résumé
Abstract Bacillus velezensis is considered as model species belonging to the so-called B. subtilis complex that typically evolved to dwell in the soil rhizosphere niche and establish intimate association with plant roots. This bacterium provides protection to its natural host against diseases and represents one of the most promising biocontrol agents. However, the molecular basis of the cross-talk that this bacterium establishes with its natural host has been poorly investigated. We show here that these plant-associated bacteria have evolved some polymer-sensing system to perceive their host and that in response, they increase the production of the surfactin-type lipopeptide. Furthermore, we demonstrate that surfactin synthesis is favoured upon growth on root exudates and that this lipopeptide is a key component used by the bacterium to optimize biofilm formation, motility and early root colonization. In this specific nutritional context, the bacterium also modulates qualitatively the pattern of surfactin homologues co-produced in planta and mainly forms variants that are the most active at triggering plant immunity. Surfactin represents a shared good as it reinforces the defensive capacity of the host.
Note
None
CRAW tags
  • AB - Utile à l'AB
  • bacillus
  • FREDO lutte
  • GEO Belgique
  • biocontrol
  • ravageurs
WEB tags
Date caractères
2021-02-22
Date publication
22 février 2021
Doi
10.1101/2021.02.22.432335 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique
Url publication
http://biorxiv.org/lookup/doi/10.1101/2021.02.22.432335