Titre :

Identification of two compounds able to improve flax resistance towards fusarium oxysporum infection

Auteur(s) :

Jaber, Rim [Auteur]
Planchon, Aline [Auteur]
Mathieu-Rivet, Elodie [Auteur]
Kiefer-Meyer, Marie-Christine [Auteur]
Zahid, Abderrakib [Auteur]
Plasson, Carole [Auteur]
Pamlard, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Beaupierre, Sandra [Auteur]
Trouve, Jean-Paul [Auteur]
Guillou, Catherine [Auteur]
Driouich, Azeddine [Auteur]
Follet-Gueye, Marie-Laure [Auteur]
Mollet, Jean-Claude [Auteur]

Titre de la revue :

Plant science . an international journal of experimental plant biology

Nom court de la revue :

Plant Sci

Numéro :

301

Pagination :

110690

Date de publication :

2020-12-01

ISSN :

1873-2259

Mot(s)-clé(s) en anglais :

Holaphyllamine
Plant defense
Fusarium oxysporum f. sp. lini
Elicitor
Flax (Linum usitatissimum)
Fusarium wilt

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

Plants are surrounded by a diverse range of microorganisms that causes serious crop losses and requires the use of pesticides. Flax is a major crop in Normandy used for its fibres and is regularly challenged by the pathogenic ...
Lire la suite >Plants are surrounded by a diverse range of microorganisms that causes serious crop losses and requires the use of pesticides. Flax is a major crop in Normandy used for its fibres and is regularly challenged by the pathogenic fungus Fusarium oxysporum (Fo) f. sp. lini. To protect themselves, plants use "innate immunity" as a first line of defense level against pathogens. Activation of plant defense with elicitors could be an alternative for crop plant protection. A previous work was conducted by screening a chemical library and led to the identification of compounds able to activate defense responses in Arabidopsis thaliana. Four compounds were tested for their abilities to improve resistance of two flax varieties against Fo. Two of them, one natural (holaphyllamine or HPA) and one synthetic (M4), neither affected flax nor Fo growth. HPA and M4 induced oxidative burst and callose deposition. Furthermore, HPA and M4 caused changes in the expression patterns of defense-related genes coding a glucanase and a chitinase-like. Finally, plants pre-treated with HPA or M4 exhibited a significant decrease in the disease symptoms. Together, these findings demonstrate that HPA and M4 are able to activate defense responses in flax and improve its resistance against Fo infection.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Date de dépôt :

2022-03-02T07:15:13Z