Objetivo Specific sites on the plant cell surface appear to be involved in the recognition of potential pathogenic fungi by plants. Several hypothetical models of the recognition mechanisms involve plant lectins, although their functional role in these processes remains unclear. Investigation of the potential role of lectins in the recognition of fungal pathogens by potato tubers is therefore proposed herein. The working programme includes the purification and characterization of chitin-binding plant lectins and the analysis of their antifungal properties. For the potato tuber lectin, STA, the ability to bind ligands of fungal origin, such as elicitor-active chitin oligomers, thereby possibly functioning as an elicitor receptor, will be investigated. Wether changes in the phosphorylation status of STA modulate its function and /or cellular distribution will also be examined. Additional elicitors will be isolated from plant and fungal sources with special emphasis on fungal lectins. Well-characterized inducible defence responses of potato, such as the hypersensitive response and the activation of the general phenylpropanoid metabolism, will be used to detect elicitor activity. Using these experimental tools, the involvement of calcium in the activation of elicitor responses will be analyzed employing calcium ionophores, calmodulin antagonists and calcium channel blockers. ' Programa(s) IC-PECO/COPERNICUS - Scientific and technological cooperation between the European Community and European non-member countries, 1992- Tema(s) 0401 - CEEC participation in HUMAN CAPITAL & MOBILITY programme (NETWORKS) Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V. Aportación de la UE Sin datos Dirección Carl-von-Linné-Weg 10 50829 KOELN Alemania Ver en el mapa Coste total Sin datos Participantes (1) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo Institute of Biochemistry - RoumanianAcademy of Sciences Rumanía Aportación de la UE Sin datos Dirección 296,Spl. Independentei 77748 Bucuresti Ver en el mapa Coste total Sin datos