Endophytic fusarium oxysporum [Elektronische Ressource] : phylogeny and induced defense responses in banana plants against radopholus similis / von Andreas Kurtz

Institut für Nutzpflanzenwissenschaften und Ressourcenschutz der Rheinischen Friedrich-Wilhelms-Universität Bonn Endophytic Fusarium oxysporum: Phylogeny and induced defense responses in banana plants against Radopholus similis Inaugural-Dissertation zur Erlangung des Grades Doktor der Agrarwissenschaften (Dr. agr) der Hohen Landwirtschaftlichen Fakultät der Rheinischen Friedrich-Wilhems-Universität zu Bonn vorgelegt am 10.02.2010 von Andreas Kurtz aus Saarbrücken, Deutschland Referent: Prof. R. A. Sikora Korreferent: Prof. J. Leon Tag der mündlichen Prüfung: 18.05.2010 Gedruckt bei: COD in Saarbrücken Erscheinungsjahr: 2010 Dedicated to Mina! Endophytic Fusarium oxysporum: Phylogeny and induced defense responses in banana plants against Radopholus similis The burrowing nematode Radopholus similis is a destructive pest of banana causing severe yield losses in plantations worldwide. R. similis infestation of the banana root is significantly reduced, when the root system is colonized by specific non-pathogenic Fusarium oxysporum endophytes. This enhanced resistance towards the nematode acts in a systemic manner. Until now, it is not clear how and why only specific isolates of this species of Fusarium induce what is called systemic induced resistance (SIR).