The effects of low nitrate levels on the freshwater cyanobacterium Synechocystis sp. strain PCC 6803: Construction of a bioreporter assay and molecular characterization by transcriptome and proteome analysis

2003 2 3 PLEDGE I certify that the present thesis entitled: " The effects of low nitrate levels on the freshwater cyanobacterium Synechocystis sp. strain PCC 6803: Construction of a bioreporter assay and molecular characterization by transcriptome and proteome analysis " was carried out without any unlawful devices. I did not use any other than the described literature sources or technical devices. This work has never been submitted before in this or similar form to any other university and has not been used for any examination. ACKNOWLEDGEMENTS I would like to thank all those who contrib uted in one way or another to the research summarized in this thesis, first of all my supervisor, Professor Dr. Rolf D. Schmid for giving me the opportunity to do this work in his laboratory and also for his useful advise and encouragement. Furthermore, I would like to thank him very much for his support to my scholarship application. I would also like to thank Dr. Till T. Bachmann, the head of the Biosensor group at the ITB, for his guidance, enthousiasm and numerous helpful discussions, corrections of m y publications and the manuscript of this dissertation. I am grateful to all my colleagues at ITB and especially the members of the Biosensor group, for every kind of support they brought to me during my work.