The gametophyte specific ARM repeat protein AtARO1 is required for actin dynamics in Arabidopsis during pollen tube growth and double fertilization [Elektronische Ressource] / by Marina Gebert

The gametophyte specific ARM repeat protein AtARO1 is required for actin dynamics in Arabidopsis during pollen tube growth and double fertilization DISSERTATION A thesis submitted to the Faculty of Natural Sciences, Biology and Preclinical Medicine, University of Regensburg for the degree of doctor of natural sciences (Dr. rer. nat.) by Marina Gebert from Hamburg 5/2008 Promotionsgesuch eingereicht am: 21.05.2008 Tag des Kolloquiums: 11.07.2008 Die Arbeit wurde angeleitet von: Prof. Dr. T. Dresselhaus Prüfungsausschuß: Vorsitzender: Prof. Dr. G. Längst Erstgutachter: Prof. Dr. T. Dresselhaus Zweitgutachter: Prof. Dr. E. Kerkhoff Drittprüfer: Prof. Dr. H. Tschochner Contents CONTENTS CONTENTS .............................................................................................................................................. I ABBREVIATIONS .................................................................................................................................... 1 1. INTRODUCTION ................................................................................................................................. 5 1.1 Development of the female and male gametophytes ........................................................................ 5 1.2 Roles of the actin cytoskeleton during fertilization ...............................................