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Cadmium-Accumulating Plants

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2013
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Abstract
Plants are categorized in three groups concerning their uptake of heavy metals: indicator, excluder, and hyperaccumulator plants, which we explain in this chapter, the former two groups briefly and the hyperaccumulators in detail. The ecological role of hyperaccumulation, for example, the prevention of herbivore attacks and a possible substitution of Zn by Cd in an essential enzyme, is discussed. As the mechanisms of cadmium hyperaccumulation are a very interesting and challenging topic and many aspects are studied worldwide, we provide a broad overview over compartmentation strategies, expression and function of metal transporting proteins and the role of ligands for uptake, transport, and storage of cadmium. Hyperaccumulators are not without reason a topic of great interest, they can be used biotechnologically for two main purposes which we discuss here for Cd: phytoremediation, dealing with the cleaning of anthropogenically contaminated soils as well as phytomining, i.e., the use of plants for commercial metal extraction. Finally, the outlook deals with topics for future research in the fields of biochemistry/biophysics, molecular biology, and biotechnology. We discuss which knowledge is still missing to fully understand Cd hyperaccumulation by plants and to use that phenomenon even more successfully for both environmental and economical purposes.
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570 Biosciences, Biology
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Cadmium: From Toxicity to Essentiality / Sigel, Astrid; Sigel, Helmut; Sigel, Roland KO (ed.). - Dordrecht : Springer Netherlands, 2013. - (Metal Ions in Life Sciences ; 11). - pp. 373-393. - ISBN 978-94-007-5178-1
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ISO 690KÜPPER, Hendrik, Barbara LEITENMAIER, 2013. Cadmium-Accumulating Plants. In: SIGEL, Astrid, ed., Helmut SIGEL, ed., Roland KO SIGEL, ed.. Cadmium: From Toxicity to Essentiality. Dordrecht:Springer Netherlands, pp. 373-393. ISBN 978-94-007-5178-1. Available under: doi: 10.1007/978-94-007-5179-8_12
BibTex
@incollection{Kupper2013Cadmi-24907,
  year={2013},
  doi={10.1007/978-94-007-5179-8_12},
  title={Cadmium-Accumulating Plants},
  number={11},
  isbn={978-94-007-5178-1},
  publisher={Springer Netherlands},
  address={Dordrecht},
  series={Metal Ions in Life Sciences},
  booktitle={Cadmium: From Toxicity to Essentiality},
  pages={373--393},
  editor={Sigel, Astrid and Sigel, Helmut and Sigel, Roland KO},
  author={Küpper, Hendrik and Leitenmaier, Barbara}
}
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