DJIAN-CAPORALINO , Caroline

We performed a genome-wide association study of pepper (Capsicum annuum) tolerance to potato virus Y (PVY). For 254 pepper accessions, we estimated the tolerance to PVY as the coefficient of regression of the fresh weight (or height) of PVY-infected and mock-inoculated plants against within-plant virus load. Small (strongly negative)...

Experimental field co-design and evaluation of prototype cropping systems (PCS) combining technicaland varietal innovations were implemented within the framework of the INRA project 'GEDUNEM' for thesustainable management of root-knot nematodes (RKN) under Mediterranean sheltered vegetablesystems. A PCS, alternating sorghum green manure and...

National audience

National audience

International audience

Root-knot nematodes (RKNs) heavily damage most solanaceous crops worldwide. Fortunately, major resistance genes are available in a number of plant species, and their use provides a safe and economically relevant strategy for RKN control. From a structural point of view, these genes often harbour NBS-LRR motifs and are organized in syntenic...

This article shows a simplified protocol for the identification of root-knot nematode species (Meloidogyne spp.). A biochemical study sets out that the species of these nematodes can be differentiated by their enzyme phenotype and in particular with their esterases. This identification method is reliable. It is based on the differential...

International audience

Root knot nematodes are obligate phytoparasites that invade the roots of important crop plants causing severe economic losses. Arbuscular Mycorrhizal Fungi (AMF) are soil borne microorganisms that establish mutualistic associations with the roots of most plants. AMF have been frequently indicated to help their host to attenuate the damage...

Root-knot nematodes (RKN), Meloidogyne species, are a top global threat associated with economic crop yield losses. They are difficult to detect and control, especially given the recent restrictions on environmentally harmful chemicals. Thus, there is a need for alternative solutions for sustainable RKN management, such as nematicidal plants...

International audience

Root-knot nematodes (RKNs), Meloidogyne spp., are extremely polyphagous plant parasites worldwide. Since the use of most chemical nematicides is being prohibited, genetic resistance is an efficient alternative way to protect crops against these pests. However, few resistance genes (Rgenes) are available and some nematode populations may become...

Key message The plant genetic background influences the efficiency of major resistance genes to root-knot nematodes in pepper and has to be considered in breeding strategies. Root-knot nematodes (RKNs), Meloidogyne spp., are extremely polyphagous plant parasites worldwide. Since the use of most chemical nematicides is being prohibited, genetic...

Root-knot nematodes, Meloidogyne spp., are extremely polyphagous plant parasites worldwide. Since the use of most chemical nematicides is being prohibited, genetic resistance is an efficient alternative way ta protect crops against these pests. However, resistance genes (R-genes) are limited and nematode populations are able ta overcome them...

Root-knot nematodes (RKNs) of the genus Meloidogyne are soil-borne, little mobile, polyphagous pests which threaten important sheltered crops such as vegetables or small fruits. They attack plant roots to feed and reproduce and have a major impact on crop ...

Root-knot nematodes (RKN) are soil-borne, little mobile, polyphagous pests which threaten important sheltered crops such as vegetables or small fruits. They attack plant roots to feed and reproduce and have a major impact on crop yield. Most modern eco-friendly plant protection strategies against RKN are based on the use of resistant crops. The...

International audience

Damage caused by pests and diseases on vegetables crops can lead to high economic losses. This is why with current changes to control strategies and a reduction in the use of plant protection products in Europe, knowledge on pests and diseases (host plants, geographic distribution, potential damage level...) has become as an unavoidable topic...

With the banning of most chemical nematicides, the control of root knot nematodes (RKNs) in vegetable crops is mainly based on the deployment of single-major resistance genes (R-genes). However, these genes are rare and their efficiency is threatened by RKNs capacities of adaptation. ln pepper, several dominant R-genes are efficient against...

With the banning of most chemical nematicides, the control of root-knot nematodes (RKNs) in vegetable crops is now based essentially on the deployment of single, major resistance genes (R-genes). However, these genes are rare and their efficacy is threatened by the capacity of RKNs to adapt. In pepper, several dominant R-genes are effective...

Arbuscular mycorrhizal fungi (AMF) contribute to plant health management, especially in bioprotection against soil-borne pests such as root-knot nematodes (Meloidogyne spp.). These worldwide spread pests have a particularly severe impact on vegetable crops. Our aim is to combine AMF and companion plants as agroecological means to reduce...

Les champignons mycorhiziens à arbuscules (CMA) contribuent à la santé des plantes, notamment grâce à leur effet de biocontrôle contre les ravageurs du sol tels que les nématodes à galles (Meloidogyne spp.). Ces parasites ont un impact particulièrement sévère sur les cultures maraîchères. Notre objectif est de coupler les effets de biocontrôle...

A multi-seasonal model of plant-nematode interactions and its use for durable plant resistance deployment strategies. EASY Conference, Groupe « Ecologie & Agriculture » de la Société Française d'Ecologie (Sfe), Ecology & Agriculture Summit for Young scientists

Root-knot nematodes (RKNs, Meloidogyne spp.) are major plant pathogens of vegetables in most production areas, including the Solanaceous crops tomato and pepper. Due to the banning of chemical nematicides, current control strategies are mainly based on the deployment of resistance genes (R-genes), i.e., Mi(s) in tomato, Me(s) in pepper. These...