Community Research and Development Information Service - CORDIS

Discovery of SXP/RAL-2 protein as putative pathogenicity factors of root knot nematodes

Meloidogyne incognita is a major parasite of numerous plant families, including many crop species. Upon infection of the plant root, it induces several multinucleate giant cells by the injection of pharyngeal gland secretions into the root cells. In order to obtain a better understanding of the nematode-plant interaction, characterization of the pharyngeal gland secretions is a necessity. By differential display, a nematode gene was identified that encodes a new member of the SXP/RAL- 2 protein family. The gene is specifically expressed in the subventral pharyngeal glands and the protein is most likely secreted.

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