Most terrestrial flowering plants are associated with arbuscular mycorrhizal fungi which may improve the growth of plants and decrease the U uptake at high levels of U in soils. However, the respective tolerance of each partner of the symbiosis (the host roots and the hyphae) to U accumulation and toxicity is unknown. In a first step, we estimated the toxicity of U to non-inoculated roots of carrot under root-organ culture conditions. The results showed that the root growth and the final biomass was decreased of at least 50% for a concentration in nutrient gel of 10 ppm of U. Further experiments are carried out in similar conditions with inoculated roots to compare the U toxicity on roots and hyphae.
|Title of host publication||Proceedings from The 2nd international conference on radioactivity in the environment|
|Place of Publication||Nice, France|
|State||Published - 4 Oct 2005|
|Event||IUR - The 2nd International Conference on Radioactivity in the Environment - IUR - International Union of Radioecology, Nice|
Duration: 2 Oct 2005 → 6 Oct 2005
|Conference||IUR - The 2nd International Conference on Radioactivity in the Environment|
|Period||2005-10-02 → 2005-10-06|