Contribution of the arbuscular mycorrhizal symbiosis to heavy metal phytoremediation
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High concentrations of heavy metals (HM) in the soil have detrimental effects on ecosystems and are a risk to human health as they can enter the food chain via agricultural products or contaminated drinking water. Phytoremediation, a sustainable and inexpensive technology based on the removal of pollutants from the environment by plants, is becoming an increasingly important objective in plant research. However, as phytoremediation is a slow process, improvement of efficiency and thus increased stabilization or removal of HMs from soils is an important goal. Arbuscular mycorrhizal (AM) fungi provide an attractive system to advance plant-based environmental clean-up. During symbiotic interaction the hyphal network functionally extends the root system of their hosts. Thus, plants in symbiosis with AM fungi have the potential to take up HM from an enlarged soil volume. In this review, we summarize current knowledge about the contribution of the AM symbiosis to phytoremediation of heavy metals.
KeywordsArbuscular mycorrhizal symbiosis Glomus Heavy metal Phytoremediation
Effective concentration reducing germination or hyphal growth to 50%
We apologize to all those researchers whose work we overlooked or could not include because of page limitations. We are grateful to Patrick King for critical reading of the manuscript.
- Gaur A, Adholeya A (2004) Prospects of arbuscular mycorrhizal fungi in phytoremediation of heavy metal contaminated soils. Current Sci 86:528–534Google Scholar
- Hildebrandt U, Kaldorf M, Bothe H (1999) The zinc violet and its colonization by arbuscular mycorrhizal fungi. J Plant Physiol 154:709–717Google Scholar
- Holleman A, Wiberg E (1985) Lehrbuch der Anorganischen Chemie. BerlinGoogle Scholar
- Kaldorf M, Kuhn AJ, Schröder WH, Hildebrandt U, Bothe H (1999) Selective element deposits in maize colonized by a heavy metal tolerance conferring arbuscular mycorrhizal fungus. J Plant Physiol 154:718–728Google Scholar
- Nagy R, Karandashov V, Chague V, Kalinkevich K, Tamasloukht M, Xu G, Jakobsen I, Levy AA, Amrhein N, Bucher M (2005) The characterization of novel mycorrhiza-specific phosphate transporters from Lycopersicon esculentum and Solanum tuberosum uncovers functional redundancy in symbiotic phosphate transport in solanaceous species. Plant J 42:236–250PubMedCrossRefGoogle Scholar
- Natvig D, Sylvester K, Dvorachek W, Baldwin J (1996) Superoxide dismutases and catalases. In: Marzluf G (ed) The micota III biochemistry and molecular biology. Springer, Berlin Heidelberg New York, pp 191–209Google Scholar
- Parádi I, Berecz B, Halász K, Bratek Z (2003) Influence of arbuscular mycorrhiza and cadmium on the polyamine contents of Ri T-DNA transformed Daucus carota L. root cultures. Acta Biologica Szegediensis 47:31–36Google Scholar