School of Engineering and Science - Jacobs University
School of Engineering and Science - Jacobs University
School of Engineering and Science - Jacobs University
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Acknowledgements<br />
This project was supported by grants from Deutsche Forschungsgemeinschaft<br />
<strong>and</strong> by IUB.<br />
Pr<strong>of</strong>. Dr. Matthias Ullrich gave me the possibility to work on this project <strong>and</strong><br />
supported my studies with guidance <strong>and</strong> advice.<br />
Dr. Beate Völksch, Pr<strong>of</strong>. Ulrich Schwaneberg <strong>and</strong> Pr<strong>of</strong>. Georgi Muskhelishvili<br />
agreed to take part in my thesis committee <strong>and</strong> were always available for<br />
discussion <strong>of</strong> the project.<br />
I would like to thank our external cooperation partners:<br />
Dr. Beate Völksch (Jena, Germany) started the investigations on the antagonist<br />
Pss22d <strong>and</strong> agreed on a cooperation project on the investigation <strong>of</strong> biocontrol<br />
mechanisms. Discussions with her <strong>and</strong> her group members Petra Büttner <strong>and</strong><br />
Sascha D. Braun significantely stimulated this project.<br />
Pr<strong>of</strong>. Dr. Dominique Expert (Paris, France) supplied me with the<br />
Dikeya chrysanthemi strain for achromobactin production <strong>and</strong> siderophore<br />
cross-feeding experiments were performed in her lab. Pr<strong>of</strong>. Dr. Jean-Marie<br />
Meyer (Strasbourg, France) allowed me to visit his laboratory <strong>and</strong> taught me<br />
how to purify <strong>and</strong> analyse siderophores. Pr<strong>of</strong>. Dr. Herbert Budzikiewicz<br />
(Cologne, Germany) agreed to perform NMR-analysis <strong>of</strong> purified Pss22d<br />
siderophore.<br />
I would not have been able to accomplish the presented thesis without the<br />
assistance <strong>of</strong> Dr. Helge Weingart. His most valuable recommendations <strong>and</strong> the<br />
many discussions with him formed the basis for the presented results.<br />
All present <strong>and</strong> past members <strong>of</strong> the AG Ullrich, I have to thank for their help as<br />
well as for the great working atmosphere. A special thanks to Yvonne Braun,<br />
for a “hurricane proven” friendship.<br />
I would like to thank Marcus Lindemann for his patience while explaining<br />
fluorescence measurements to a biologist.<br />
I am deeply grateful to my family. Without your support, patience <strong>and</strong><br />
motivation I would not have been able to finish my studies.
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