During my Ph.D., I have focused my research to uncover the molecular network controlling ovule development in Arabidopsis thaliana. This thesis is organized in an introduction part, in which I have described what it is known about ovule development including the description of the role of hormones. Then, in chapter 1, I have described the research performed to study the role of auxin and auxin polar transport in ovule development. Chapter 2 is focalized on the study that I have performed to identify and characterized genes involved in auxin biosynthesis during ovule development in Arabidopsis. Chapter 3 described the results obtained manipulating the cytokinin amount in ovule. Cytokinins have an antagonistic role respect to auxin during differentiation and development. I have studied cytokinins pathway using specific markers line and by genetic approaches. In the work proposed in the Chapter 4 the studies on the influence of auxin, cytokinin and transcription factor on ovule development, converge in one single line of investigation and a model for ovule organogenesis is proposed. In the last chapter the final discussion is presented with a general overview of the results and the suggestion of future experiments that could be performed in the near future.
HORMONAL NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA / S. Bencivenga ; docente guida: Lucia Colombo ; coordinatore del dottorato: Carlo Soave. - Milano : Università degli studi di Milano. Università degli Studi di Milano, 2011 May 10. ((23. ciclo, Anno Accademico 2010.
Titolo: | HORMONAL NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA |
Autori: | |
Relatore: | |
Supervisori e coordinatori interni: | SOAVE, CARLO |
Data di pubblicazione: | 10-mag-2011 |
Parole Chiave: | Hormone ; auxin ; cytokinin ; ovule ; Arabidopsis ; development |
Settore Scientifico Disciplinare: | Settore BIO/01 - Botanica Generale |
Tipologia: | Doctoral Thesis |
Citazione: | HORMONAL NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA / S. Bencivenga ; docente guida: Lucia Colombo ; coordinatore del dottorato: Carlo Soave. - Milano : Università degli studi di Milano. Università degli Studi di Milano, 2011 May 10. ((23. ciclo, Anno Accademico 2010. |
Digital Object Identifier (DOI): | http://dx.doi.org/10.13130/bencivenga-stefano_phd2011-05-10 |
Appare nelle tipologie: | Tesi di dottorato |
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phd_unimi_R07718.pdf | Tesi di dottorato completa | Open Access BNCFVisualizza/Apri |