Surviving embryogenesis : The extraembryonic serosa protects the insect egg against desiccation and infection

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Surviving embryogenesis : The extraembryonic serosa protects the insect egg against desiccation and infection

Title: Surviving embryogenesis : The extraembryonic serosa protects the insect egg against desiccation and infection
Author: Jacobs, Chris Gerardus Cornelus
Publisher: Institute of Biology (IBL), Faculty of Science, Leiden University
Issue Date: 2014-12-04
Keywords: Insect egg
Serosa;
Extraembryonic
Survival
Infection
Dehydration
Immunity
Abstract: Insects are the most diverse group of animals on earth. They inhabit nearly all terrestrial habitats. One of the factors underlying this success is the ability of insect eggs to survive in adverse conditions. For a long time the ability to survive these adverse conditions has been attributed to maternal investment in the form of a protective eggshell. In this thesis, I show that contrary to common belief, insect eggs are far from helpless. The insect egg itself develops a cellular layer around the egg called the serosa. This serosa protects the developing embryo from dehydration which enables it to survive in dry habitats. The serosa furthermore protects against infection, mounting an impressive immune response upon the entry of bacteria in the egg. The data presented in this thesis show the importance of the serosa in the survival of the insect egg. I propose that this multifunctional serosa contributed to the great success of insects.
Description: Promotor: Herman P. Spaink, Co-promotor: Maurijn van der Zee
With summary in Dutch
Faculty: Faculteit der Wiskunde en Natuurwetenschappen
Citation: Jacobs, C.G.C., 2014, Doctoral thesis, Leiden University
ISBN: 9789491014338
Handle: http://hdl.handle.net/1887/29935
 

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application/pdf Title page_Table of contents 259.5Kb View/Open
application/pdf Chapter 1 General introduction 3.716Mb View/Open
application/pdf Chapter 2 3.710Mb View/Open Full text at publisher site
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application/pdf Chapter 7 Summary_discussion and perspective 1.943Mb View/Open
application/pdf Summary in Dutch 3.891Mb View/Open
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