A pot experiment was carried out to explore the annual changes by bioremediation inoculated with 30 g Glomus versiorme in Pteris vittata L. The results showed that mycorrhizal colonization was the lowest in September 2013 (57.14%), and was the highest in March 2014 (75.20%), following the tendency firstly increasing and then decreasing. The dry biomass was markedly high in Gv than that in CK, especially in roots. The total U was significantly higher in Gv than that in CK, and was fixed predominantly into roots. The media in Gv showed less U than that in CK. It was absorbed the most to iron and manganese oxidable U and sulfide U, and each U species declined accompanying the time prolongation. In addition, bioconcentration factors were higher in Gv compared to those of CK, and both treatments were above 1. Positive relationship was found between mycorrhizal colonization and bioconcentration factors. Therefore, U uptake was enhanced inoculated by Gv, and the symbiont in arbuscular mycorrhizal fungus and Pteris vittata L. had a potential to remediate U polluted soil.
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