Role and influence of mycorrhizal fungi on radiocesium accumulation by plants

Hervé Dupré de Boulois, E.J. Joner, C. Leyval, I. Jakobsen, B.D. Chen, P. Roos, Yves Thiry, Gervais Rufyikiri, B. Delvaux, Stéphane Declerck, Jean Wannijn

    Research outputpeer-review


    This review summarizes current knowledge on the contribution of mycorrhizal fungi to radiocesium immobilization and plant accumulation. These root symbionts develop extended hyphae in soils and readily contribute to the soil-to-plant transfer of some nutrients. Available data show that ecto-mycorrhizal (ECM) fungi can accumulate high concentration of radiocesium in their extraradical phase while radiocesium uptake and accumulation by arbuscular mycorrhizal (AM) fungi is limited. Yet, both ECM and AM fungi can transport radiocesium to their host plants, but this transport is low. In addition, mycorrhizal fungi could thus either store radiocesium in their intraradical phase or limit its root-to-shoot translocation. The review discusses the impact of soil characteristics, and fungal and plant transporters on radiocesium uptake and accumulation in plants, as well as the potential role of mycorrhizal fungi in phytoremediation strategies
    Original languageEnglish
    Pages (from-to)785-800
    JournalJournal of environmental radioactivity
    Issue number5
    StatePublished - Apr 2008

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