Oral Session IX

Strain differentiation of Candidatus Phytoplasma Mali by SSCP- and sequence analyses of the HFLB gene Schneider, Bernd, Seemueller, Erich, Jarausch, WolfgangMolecular characterization of Candidatus Phytoplasma mali strains in outbreaks of apple proliferation in north eastern Italy, Hungary, and Serbia Paltrinieri, Samanta, Duduk, Bojan, Dal Molin, Federica, Mori, Nicola, Comerlati, Giovanni, Bertaccini, AssuntaBreeding of rootstocks resistant to apple proliferation disease Seemüller, Erich, Bisognin, Claudia, Grando, Stella, Schneider, Bernd, Velasco, Riccardo, Jarausch, WolfgangInfluence of apple stem grooving virus on Malus sieboldii-derived apple proliferation resistant rootstocks Liebenberg, Annerie, Wetzel, Thierry, Kappis, Alexander, Herdemertens, Michelle, Krczal, Gabriele, Jarausch, WolfgangIdentification of host plants for Candidatus Phytoplasma prunorum and of his vector Cacopsylla pruni in SpainSabate, J., Laviña, A., Batlle, A.Infection rates of natural psyllid populations with Candidatus 'Phytoplasma mali' in South Tyrol (northern Italy) Baric, Sanja, Oettl, Sabine, Dalla Via, JosefComparison of European stone fruit yellows phytoplasma strains differing in virulence by multi-gene sequence analyses Marcone, Carmine, Schneider, Bernd, Seemüller, ErichHypo and hyper-virulence in apricot trees infected by European stone fruit yellows Ermacora, Paolo, Loi, Nazia, Ferrini, Francesca, Loschi, Alberto, Martini, Marta, Osler, Ruggero, Carraro, Luig