The role of COP1/SPA in light signaling [Elektronische Ressource] : growth control, cell-cell communication and functional conservation in plants / vorgelegt von Aashish Ranjan

The role of COP1/SPA in light signaling: Growth control, cell-cell communication and functional conservation in plants Inaugural-Dissertation zur Erlangung des Doktorgrades der Mathematisch-Naturwissenschaftlichen Fakultät der Universität zu Köln vorgelegt von Aashish Ranjan (Aus Darbhanga; Indien) Köln, 2010 Berichterstatter: Prof. Dr. Ute Höcker Prof. Dr. Martin Hülskamp Prüfungsvorsitzender: Prof. Dr. Wolfgang Werr Tag der mündlichen Prüfung: 15.10. 2010 Contents Contents: Contents I Abbreviations IV Abstract VI Zusammenfassung VII I. Introduction 1 I. 1. The role of photoreceptors in Arabidopsis development 1 I. 2. The COP1/SPA complex: Repressor of light signaling in darkness 6 I. 3. SPA genes regulate various stages of plant growth and development 10 I. 4. Cell-cell communication in light-regulated plant development 12 I. 5. Light signaling in rice and Physcomitrella 15 II. Aims of this PhD thesis 18 III. Results 19 III. 1. Cell-cell communication in SPA1-regulated plant development 19 III.