FAZARI , Ariane

National audience

National 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...

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, 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...

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...

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...

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...

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...

Root-knot nematodes (RKNs) can severely damage crops, including peppers, worldwide. The application of resistance genes identified in the Capsicum annuum genome may represent a safe and economically relevant strategy for controlling RKNs. Among the Me genes (Me1, Me3, Me7, and N) that have been mapped to a cluster on chromosome P9, Me1 confers...

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...