Objectives
Abstract
Understanding the physiological, biochemical and molecular mechanisms that control the response and adaptation of plants to trace metal element (TME)-induced stress is a prerequisite for improving food safety and for selecting species suitable for phytoremediation. Bidens pilosa seems to be in this sense an ideal natural resource for this type of study. Indeed, this plant presents exceptional properties of tolerance to environments polluted by TMEs such as uranium, cadmium or lead, which it accumulates in leaves, and it presents a rapid growth and a relatively high biomass. In this context, the objective of this project will be to analyze in detail the capacities of absorption, translocation and sequestration of these metals in B. pilosa, to evaluate the performances of this plant for the remediation of polluted soils and to elucidate the molecular mechanisms promoting the translocation of these metals in its aerial parts​. • Berthet S., Villiers, F., Alban, C. Serre, N. Martin-Laffon, J., Figuet, S., Boisson, A.-M. Bligny, R., Kuntz, M., Finazzi, G., Ravanel, S. and Bourguignon, J. (2018) Arabidopsis thaliana plants challenged with uranium reveal new insights into iron and phosphate homeostasis. New Phytologist, 217: 657–670
• Revel B., Catty P., Ravanel S., Bourguignon J. and Alban C. (2022) High-affinity iron and calcium transport pathways are involved in U(VI) uptake in the budding yeast Saccharomyces cerevisiae. Journal of Hazardous Materials. Volume 422, 126894, ISSN 0304-3894
• Sarthou M., Devime F., Baggio C., Figuet S., Alban C., Bourguignon J. and Ravanel S. (2022) Calcium-permeable cation channels are involved in uranium uptake in Arabidopsis thaliana, Journal of Hazardous Materials, Volume 424, 2022, 127436, ISSN 0304-3894