DE ALMEIDA ENGLER , Janice

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The plant cell cycle inhibitor gene KRP6 has been investigated in roots infected by plant-parasitic root-knot nematodes (Meloidogyne spp.). Unexpectedly, KRP6 overexpressing lines revealed a distinct role for this specific KRP as an activator of the mitotic cell cycle. This function was confirmed in Arabidopsis thaliana suspension cultures...

Plant-parasitic root-knot and cyst nematodes have acquired the ability to induce remarkable changes in host cells during the formation of feeding sites. Root-knot nematodes induce several multinucleate giant cells inside a gall whereas cyst nematodes provoke the formation of a multinucleate syncytium. Both strategies impinge on the deregulation...

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Plant-parasitic nematodes, like root-knot and cyst nematodes, usurp and modulate the plant cell cycle machinery in their favour. Both, the plant mitotic cycle and the endocycle, are essential targets for a successful susceptible interaction between the host plant and these pathogens. Key cell cycle genes, as well as their inhibitor genes, are...

Transfer cells are ubiquitous plant cells that play an important role in plant development as well as in responses to biotic and abiotic stresses. They are highly specialized and differentiated cells playing a central role in the acquisition, distribution and exchange of nutrients. Their unique structural traits are characterized by augmented...

Plant auxin efflux and influx proteins redirect the plant hormone auxin towards the feeding site upon root-knot nematode infection in Arabidopsis thaliana roots.Plant-parasitic root-knot nematodes induce the formation of giant cells within the plant root, and it has been recognized that auxin accumulates in these feeding sites. Here, we studied...

International audience

International audience

International audience

Monocotyledonous crops including cereals, sugar cane, banana and cassava make an important tribute to agricultural commodities both in production and value worldwide. Diseases caused by nematodes in monocots are well documented and new data are emerging on interactions of these pathogens with some important monocotyledonous crop species. This...

International audience