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. - : . Università degli Studi di Milano, 2011 May 10. ((23. ciclo, Anno Accademico 2010. [10.13130/bencivenga-stefano_phd2011-05-10].

HORMONAL NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA

S. Bencivenga
2011

Abstract

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.
COLOMBO, LUCIA
SOAVE, CARLO
Hormone ; auxin ; cytokinin ; ovule ; Arabidopsis ; development
Settore BIO/01 - Botanica Generale
HORMONAL NETWORK CONTROLLING THE OVULE DEVELOPMENT IN ARABIDOPSIS THALIANA / S. Bencivenga ; docente guida: Lucia Colombo ; coordinatore del dottorato: Carlo Soave. - : . Università degli Studi di Milano, 2011 May 10. ((23. ciclo, Anno Accademico 2010. [10.13130/bencivenga-stefano_phd2011-05-10].
Doctoral Thesis
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/157299
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