The phytopathogenic interaction between Claviceps purpurea and rye [Elektronische Ressource] : significance of enzymes involved in the response to active oxygen species / vorgelegt von Sabine Ivison

MikrobiologieThe phytopathogenic interaction betweenClaviceps purpurea and rye: significance of enzymesinvolved in the response to active oxygen speciesInaugural-Dissertationzur Erlangung des Doktorgradesder Naturwissenschaften im Fachbereich Biologieder Mathematisch-Naturwissenschaftlichen Fakultätder Westfälischen Wilhelms-Universität Münstervorgelegt vonSabine Ivisonaus Victoria, BC, Kanada-2002-Dekan: Pr. Dr. PaulErster Gutachter: Pr. Dr. TudzynskiZweiter Gutachter: Pr. Dr. MeinhardtTag der mündlichen Prüfung: 17.07.2002Tag der Promotion: 17.07.2002IIndexIndexIndex IAbbreviations VI1 Introduction 11.1 Oxygen toxins: the price of an aerobic lifestyle 11.1.1 The toxicity of oxygen 11.1.2 Sources of active oxygen 31.1.3 Survival as an aerobe 41.1.4 A closer look at two AOS scavenging proteins: Cu,Zn SOD and catalase 61.1.4.1 Cu,Zn SOD 61.1.4.2 Catalase 81.2 Harnessing the evil: AOS in plant pathogenesis 101.2.1 Early response to attack determines compatibility of interaction 101.2.2 Early response AOS production: the oxidative burst 111.2.3 Functions of the oxidative burst 121.2.3.1 Direct antimicrobial activity 121.2.3.2 Oxidative cell wall alterations 131.2.3.3 AOS in gene activation during plant defense 141.2.3.4 Hypersensitive response 151.2.3.5 Other functions of the oxidative burst 161.3 Claviceps purpurea 171.3.1 Pathogenesis on rye 181.3.2 Ergot alkaloids of sclerotia 201.3.