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Role and influence of mycorrhizal fungi on radiocesium accumulation by plants

Authors :
Dupré de Boulois, H.
Joner, E.J.
Leyval, C.
Jakobsen, I.
Chen, B.D.
Roos, P.
Thiry, Y.
Rufyikiri, G.
Delvaux, B.
Declerck, S.
Source :
Journal of Environmental Radioactivity. May2008, Vol. 99 Issue 5, p785-800. 16p.
Publication Year :
2008

Abstract

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. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
0265931X
Volume :
99
Issue :
5
Database :
Academic Search Index
Journal :
Journal of Environmental Radioactivity
Publication Type :
Academic Journal
Accession number :
31754969
Full Text :
https://doi.org/10.1016/j.jenvrad.2007.10.008