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Functional characterization of tomato Sl-IAA3 and Sl-hls genes. Role ...

Functional characterization of tomato Sl-IAA3 and Sl-hls genes. Role ...

touchant essentiellement

touchant essentiellement les tissues végétatifs, cette étude ouvre de nouvelles perspectives pour aborder le rôle du dialogue hormonal dans le développement et la maturation des fruits. Organisation du manuscrit de thèse Après une introduction bibliographique (chapitre I) concernant la signalisation de l’auxine, son mode d’action et les modalités d’interactions avec d’autres hormones en particulier avec l’éthylène, le chapitre II de ce manuscrit est consacré à la caractérisation fonctionnelle du gène Sl-IAA3 faisant partie de la famille des Aux/IAA codant pour des régulateurs transcriptionnels de l'auxine. Le chapitre III concerne la caractérisation du gène HOOKLESS (HLS1) et décrit de nouveaux phénotypes du mutant hls1 d'Arabidopsis. Le chapitre IV est dédié à l’isolement et à la caractérisation fonctionnelle des gènes Sl-HLS1 et Sl-HLS2 de tomate. Il est montré en particulier que la formation du crochet apical est associée à une répartition fine des territoires d'expression des gènes Sl-IAA3 et Sl-HLS2.

Articles LISTE DES PUBLICATIONS Chaabouni S, Delalande C, Jones B, Wang H, Li ZG, Mila I, Latche A, Pech JC and Bouzayen M (2008) The Sl-IAA3 tomato Aux/IAA gene is in the cross-roads of auxin and ethylene signalling. (soumis) Wang H, Jones B, Li ZG, Frasse P, Delalande C, Regad F, Chaabouni S, Latché A, Pech JC and Bouzayen M (2005) LeIAA9, a tomato Aux/IAA gene involved in fruit development and leaf morphogenesis. The Plant Cell 17, 2676-2692 Chaabouni S, Jones B, Delalande C, Li Z.,Wang H, Regad F and Bouzayen M. Functional characterization of LeIAA3, a tomato Aux/IAA-like gene. Biologia plantarum. (2005). 49 (suppl), S17 Communications Chaabouni S., Delalande C., Wang H., Mila I., Regad F., Bouzayen M (2007). Sl-IAA3, a tomato Aux/IAA gene, provides a molecular link between ethylene and auxin signalling. Poster. Book of abstracts The 4 th Solanaceae Genome Workshop in Jeju, Korea, PS20p101. Chaabouni S, Delalande C., Wang H., Mila I., Regad F., Bouzayen M. (2006) Downregulation of an Aux/IAA gene results in ethylene and auxin associated phenotypes in the tomato. Poster. Book of abstracts 7th International Symposium on the Plant Hormone Ethylene Pisa, Italy, P3.6-p70 Chaabouni S, Delalande C., Wang H., Mila I., Regad F., Bouzayen M. (2006) Downregulation of an Aux/IAA gene results in ethylene and auxin associated phenotypes in the tomato. Poster. The First Mediterranean Congress on Biotechnology (MCB1), Yasmine Hammamet ,Tunisia. Chaabouni S, Jones B, Delalande C, Li ZG, Wang H, Regad F and Bouzayen M (2005). Poster. Fonctional characterisation of LeIAA3, an Aux/IAA gene in the tomato. Xth France-Japan Workshop on Plant Sciences. Toulouse, France. Chaabouni S (2005). La régulation transcriptionnelle dépendante de l’auxine dans le fruit: caractérisation fonctionnelle de LeIAA3, un homologue d’Aux/IAA chez la tomate. Présentation orale. 5eme journée jeunes chercheurs ASEDIS-SO. Wang H, Hernould M, Huang Y, Chaabouni S, Bouzayen M (2007). Fine tuning of the expression of IAA9, an auxin response regulator, is instrumental to the triggering of fruit set in tomato. Poster. Book of abstracts The 4 th Solanaceae Genome Workshop, Jeju, Korea, PS22-p102. Audran C., Chateigner-Boutin A.L., Chaabouni S., Wang H., Mila I., Regad F., Bouzayen M (2006) Ethylene and auxin interplay throughout fruit development and Ripening. Oral presentation. Book of abstracts. 7 th International Symposium on the Plant Hormone Ethylene Pisa, Italy O4.4-p80

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