plants embryogenesis; molecular regulation; gene expression; embryogenèse chez les plantes supérieures; régulation moléculaire; expression de gène
Abstract :
[en] This review describes and discusses recent attempts to analyze the embryogenesis process in higher plants, through combination of descriptive, experimental, and genetic approach. Analysis of gene expression profiles has permitted to build hypothesis concerning the induced mechanisms in early phases of embryogenesis in higher plants. Such mechanisms involve specific transcriptional and post-transcriptional regulatory pathways as well as diverse signal transduction processes at each stage of plant development. [fr] Cette revue décrit et discute les récentes études ciblant l'analyse des processus de l'embryogenèse chez les plantes supérieures grâce à une combinaison d'approches descriptive, expérimentale et génétique. L'étude d'expression de gènes a permis de dégager des hypothèses sur les mécanismes induits au cours des phases précoces de l'embryogenèse chez les plantes supérieures. Ces mécanismes impliquent notamment une régulation transcriptionelle et post-transcriptionelle fine et spécifique et diverses voies de transduction du signal à chacun des stades de développement.
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