ABAD , Pierre

The root-knot nematode Meloidogyne incognita is a widespread and polyphagous obligate asexual endoparasite of plants that causes serious and growing problems to agriculture. This lifestyle implies dramatic changes of plant cells into specialized feeding sites, which are induced by secreted proteins by the nematode, so-called parasitism...

International audience

Labex SIGNALIFEExcellence in Nice at the service of cell signalling in life sciencesCreated in 2012 as part of the «Investissements d'Avenir» programme, the «Labex SIGNALIFE» Laboratory of Excellence is specialised in cell signalling in the life sciences. Thanks to their high level of excellence, its research teams contribute to improving our...

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The conference 'NemaTours: bringing worms together' aims to shine light on current and emerging research trends on the study of nematodes for the development of innovative anthelmintics by providing a platform for discussion with a peloton of internationally aknowledged leaders.

National audience

Plant parasitic nematodes are microscopic worms, the most damaging species of which have adopted a sedentary lifestyle within their hosts. These obligate endoparasites have a biotrophic relationship with plants, in which they induce the differentiation of root cells into hypertrophied, multinucleate feeding cells (FCs). Effectors synthesized in...

International audience

For almost ten years, the Zig-Zag model has provided a convenient framework for explaining the molecular bases of compatibility and incompatibility in plant-microbe interactions (Jones and Dangl, 2006). According to the Zig-Zag model, disease susceptibility is a consequence of the suppression of host immunity during the evolutionary arms race...

International audience

The pinewood nematode Bursaphelenchus xylophilus is a severe pest of coniferous trees, and has been designated as a quarantine organism in the European Union. From the sequence of a satellite DNA family characterized in the genome of this nematode, we developed a PCR procedure that allowed the specific discrimination of this species from...

International audience

The invention relates to a method for reducing the plant-parasitic nematode infestation level in a plant, comprising expressing in said plant a RNA capable of post-transcriptional inhibition of a target gene from said nematode encoding an effector-like protein or a transcription factor.

International audience

International audience

International audience

A new satellite DNA family, named pMaE, has been cloned from the genome of the phytoparasitic nematode, Meloidogyne arenaria (Nematoda: Tylenchida). It is represented as tandemly repeated sequences with a monomeric unit of 172 bp. The monomers are present at approximately 15 700 copies per haploid genome, and represent about 5.3% of the total...

International audience

International audience

International audience

Among plant-parasitic nematodes, the root-knot nematodes (RKNs) of the Meloidogyne spp. are the most economically important genus. RKN are root parasitic worms able to infect nearly all crop species and have a wide geographic distribution. During infection, RKNs establish and maintain an intimate relationship with the host plant. This includes...

International audience

International audience