Role and influence of mycorrhizal fungi on radiocesium accumulation by plants

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Abstract

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

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Original languageEnglish
Pages (from-to)785-800
JournalJournal of environmental radioactivity
Volume99
Issue number5
DOIs
Publication statusPublished - Apr 2008

Keywords

  • Arbuscular mycorrhizal fungi, Ecto-mycorrhizal fungi, Radiocesium, Phytoremediation, Transport, Immobilization

ID: 68438