Réponse moléculaire de jeunes plants de pin maritime soumis à un stress hydrique en milieu hydroponique

Abstract : Drought greatly affects the growth and development of plants. For long lived woody species, water deprivation should be considered not only in the short-term, i.e. summer drought, but also in the long-term because of the inflence of global warming. Such climatic modifications will coincide with the time lag required to achieve a breeding cycle. The maintenance of sufficient growth under stress conditions will therefore require the availability of varieties or natural resources that are adapted to present and future climatic conditions, if major losses are to be avoided. Our study is in keeping with an interdisciplinary program for the identification of phenotypic and molecular selection criteria. This thesis focuses on the molecular mechanisms involved in water-deficit response, of young seedlings growing in a hydropononic medium. An expression study carried out at the transcriptome level was developed using mRNA extracted from control and stress conditions for both the aerial part and the roots. This approach was completed by the analysis of protein accumulation.
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Christian Dubos. Réponse moléculaire de jeunes plants de pin maritime soumis à un stress hydrique en milieu hydroponique. Biologie végétale. Université Henri Poincaré - Nancy 1, 2001. Français. ⟨NNT : 2001NAN10183⟩. ⟨tel-01748671⟩

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