Unpublished conference/Abstract (Scientific congresses and symposiums)
Elicitor screening to protect wheat against Zymoseptoria tritici
Le Mire, Géraldine; SIAH, ALI; Deleu, Magali et al.
2015XVIII. International Plant Protection Congress
Peer reviewed
 

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Keywords :
Wheat; elicitor; Zymoseptoria tritici; Disease severity; Greenhouse; Screening
Abstract :
[en] Plants face an array of biotic and abiotic stresses in their environment, making it necessary to use various chemical inputs to maintain satisfactory yield. Today, conventional agriculture is evolving towards more sustainable practices, out of respect for human health and the environment. Elicitors are considered as promising biological control tools and draw major interest in IPM strategies. These plant-immunity triggering compounds, also called “stimulators of plant natural defenses”, induce a general and systemic resistance in the plant to various diseases. Although numerous elicitors have already been identified and some of them reached the market since the late 1970s, further investigations are still required to better understand the mode of action of these molecules in the plant and ensure a consistent efficiency under various field conditions. Few elicitors have yet been successfully tested and formulated to protect monocotyledonous crop plants such as wheat, which is cultivated over large areas in Europe. This study focuses on the screening of ten potential elicitor products of various origins and structures to protect winter wheat against the fungal pathogen Zymoseptoria tritici. Greenhouse trials were carried out to measure the ability of the different products to reduce disease foliar symptoms (necrosis, chlorosis and pycnidia). Topical spraying treatments with 3 different concentrations of each product were carried out 5 days before pathogen inoculation. Disease severity (% of symptoms on the total surface of the third leaf) was then scored every 2 days up to 28 days post-inoculation. In addition, phytotoxicity and biocide activity of these products was evaluated under greenhouse and laboratory conditions, respectively. The corresponding results will be presented and discussed with the perspective to choose the best elicitor candidates and to undertake investigations on the signaling pathway and the influence of environmental parameters on the elicitation capacity.
Research center :
Université de Liège - Gembloux Agro Bio Tech - Laboratoire de Phytopathologie Intégrée et Urbaine
Disciplines :
Agriculture & agronomy
Author, co-author :
Le Mire, Géraldine ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytopathologie
SIAH, ALI;  Institut Supérieur d’Agriculture (ISA) LILLE - FRANCE > Pôle Agriculture - Equipe Biotechnologie et Gestion des Agents Pathogènes en agriculture (BioGAP) > Laboratoire Régional de Recherche en Agroalimentaire et Biotechnologies Charles Viollette
Deleu, Magali  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Biophysique moléc. aux interfaces
Fauconnier, Marie-Laure  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie générale et organique
Ongena, Marc ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Bio-industries
Jijakli, Haissam  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytopathologie
Language :
English
Title :
Elicitor screening to protect wheat against Zymoseptoria tritici
Alternative titles :
[en] Elicitor screening to protect wheat against Zymoseptoria tritici
Publication date :
27 August 2015
Event name :
XVIII. International Plant Protection Congress
Event organizer :
DPG (German Scientific Society for PLant Protection and Plant Health r.S)
JKI (Julius Kühn-Institut, Federal Research Centre for Cultivated PLants)
IVA (German Crop Protection, Pest Control and Fertilizer Association)
Event place :
Berlin, Germany
Event date :
24 to 27 August 2015
Audience :
International
Peer reviewed :
Peer reviewed
References of the abstract :
XVIII. International Plant Protection Congress. Mission possible: food for all through appropriate plant protection. 24-27 August 2015. Abstracts. O FUN III-3. Elicitor screening to protect winter wheat against Zymoseptoria tritici. pp.210
Name of the research project :
Développement d’une formulation d’éliciteurs pour lutter contre les bioagresseurs du blé
Funders :
CARE AgricultureIsLife
Available on ORBi :
since 09 November 2015

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