Immunity and physiology of Lepidoptera is influenced by midgut mediated environmental signals [Elektronische Ressource] / von Dalial Freitak

Immunity and physiology of Lepidoptera is influenced by midgut mediated environmental signals Dissertation zur Erlangung des akademischen Grades doctor rerum naturalium (Dr. rer. nat.) vorgelegt dem Rat der Biologisch-Pharmazeutischen Fakultät der Friedrich-Schiller-Universität Jena von Dalial Freitak, Magister Scientarium in Tierenökologie geboren am 1. Oktober 1978 in Valga, Estland Gutachter: Prof. David G. Heckel, Max-Planck-Institute für chemische Ökologie, Jena Prof. Jonathan Gershenzon, Max-Planck-Institute für chemische Ökologie, Jena Prof. Andreas Vilcinskas, Justus-Liebig-Universität, Gießen Tag der öffentlichen Verteidigung: 28. April 2009 General introduction 1 Contents 1 General introduction ................................................................................................................ 1 1.2 Insect immunity 3 1.3 Midgut as an interaction stage with the environment ....................... 7 1.4 Trans-generational immune priming ................ 9 1.5 Aim of this thesis .............................................................................................................. 9 2 Chapter 1: Immune system responses and fitness costs associated with consumption of bacteria in larvae of Trichoplusia ni ......................... 11 2.1 Introduction .................... 11 2.2 Results .............