Objectif Mechanisms governing interaction between multicellular organisms and microbes are central for understanding pathogenesis, symbiosis and the function of ecosystems. We propose to address these mechanisms by pioneering an interdisciplinary approach for understanding cellular signalling, response processes and organ development. The challenge is to determine factors synchronising three processes, organogenesis, infection thread formation and bacterial infection, running in parallel to build a root nodule hosting symbiotic bacteria. We aim to exploit the unique possibilities for analysing endocytosis of bacteria in model legumes and to develop genomic, genetic and biological chemistry tools to break new ground in our understanding of carbohydrates in plant development and plant-microbe interaction. Surface exposed rhizobial polysaccharides play a crucial but poorly understood role in infection thread formation and rhizobial invasion resulting in endocytosis. We will undertake an integrated functional characterisation of receptor-ligand mechanisms mediating recognition of secreted polysaccharides and subsequent signal amplification. So far progress in this field has been limited by the complex nature of carbohydrate polymers, lack of a suitable experimental model system where both partners in an interaction could be manipulated and lack of corresponding methods for carbohydrate synthesis, analysis and interaction studies. In this context our legume model system and the discovery that the legume Nod-factor receptors recognise bacterial lipochitin-oligosaccharide signals at their LysM domains provides a new opportunity. Combined with advanced bioorganic chemistry and nanobioscience approaches this proposal will engage the above mentioned limitations. Champ scientifique natural sciencesbiological sciencesmicrobiologybacteriologynatural sciencesbiological sciencesbiochemistrybiomoleculescarbohydratesnatural sciencesbiological sciencesecologyecosystemsnatural sciencesbiological sciencesbiological behavioural sciencesethologybiological interactionsagricultural sciencesagriculture, forestry, and fisheriesagriculturegrains and oilseedslegumes Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) ERC-AG-LS3 - ERC Advanced Grant - Cellular and Developmental Biology Appel à propositions ERC-2010-AdG_20100317 Voir d’autres projets de cet appel Régime de financement ERC-AG - ERC Advanced Grant Institution d’accueil AARHUS UNIVERSITET Contribution de l’UE € 2 399 127,00 Adresse NORDRE RINGGADE 1 8000 Aarhus C Danemark Voir sur la carte Région Danmark Midtjylland Østjylland Type d’activité Higher or Secondary Education Establishments Chercheur principal Jens Stougaard Jensen (Prof.) Contact administratif Annette Drewsen Jensen (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire AARHUS UNIVERSITET Danemark Contribution de l’UE € 2 399 127,00 Adresse NORDRE RINGGADE 1 8000 Aarhus C Voir sur la carte Région Danmark Midtjylland Østjylland Type d’activité Higher or Secondary Education Establishments Chercheur principal Jens Stougaard Jensen (Prof.) Contact administratif Annette Drewsen Jensen (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
