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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 ...

Conclusions et

Conclusions et perspectives Les avancées acquises au cours de ce travail de thèse ajoutées aux connaissances disponibles dans la littérature permettent de proposer un modèle précisant le niveau d'intervention du gène Sl-IAA3 et son positionnement par rapport au gène Sl-HLS lors du contôle de la mise en place du crochet apical. Lumière Ethylène HLS1 IAA3 ARF2 Auxine Coissance assymétrique Crochet apical ARF8 IAA29 Pti4 Modèle d’intégration des signaux éthylène, auxine et lumière dans la croissance différentielle au niveau des plantules étiolées. Le processus de formation du crochet apical nécessite une interaction entre les gènes HLS1, IAA3 et ARF2. Sl-IAA3 et Sl-HLS agissent probablement à travers des voies parallèles qui de croisent au niveau de ARF2. 124

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