Martin Crespi

Professional situation 2008, Directeur de Recherche DR1 (première classe), Institut des Sciences du Végétal-CNRS, Gif sur Yvette, France. Positions held 1983, Ph. D. student . National Research Council, IBYME, Buenos Aires, Argentina. 1987, Postdoctoral fellow. Center for Investigations and Advanced Studies CINVESTAV and Foundation for Applied Biological Research, Irapuato, Mexico and Mar del Plata, Argentina. 1989, Postdoctoral fellow. Laboratorium voor Genetika, Rijksuniversiteit Gent, Belgium. 1992, Postdoctoral fellow EEC. Institut des Sciences Vegetales-CNRS, Gif sur Yvette, France. 1994, Chargé de Recherche de première classe CR1 from CNRS, ISV, France. 1999, Directeur de Recherche DR2 (deuxième classe), Institut des Sciences du Végétal-CNRS, Gif sur Yvette, France. Research interests Our laboratory is interested in deciphering the mechanisms of action of different riboregulators and their impact in plant growth and development by combining cell biology with genetic, genomic and molecular approaches in Arabidopsis and Medicago truncatula. The remarkable developmental plasticity of roots, their precisely defined gradient of differentiation, their capacity to form de novo meristems (lateral organs) from differentiated cells and their amenability for gene expression analysis, make them an attractive model to reveal mechanisms involving non-coding RNAs in adaptive developmental regulations to the environment. Hence, we focus our studies on the impact of post-transcriptional processes mediated by miRNAs and other non-coding RNAs in root developmental plasticity. Our results support the notion that a variety of non-coding RNAs (both long and small) through their interaction with specific regulatory genes (such as ARF genes, transcription factors or DNA methylases) may modulate the developmental adaptation of the root system to environmental conditions, and consequently may be key regulators of root developmental plasticity.

Biography Updated on 15 December 2011

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