Cellular mechanisms for heavy metal detoxification and tolerance
Heavy metals such as Cu and Zn are essential for normal plant growth, although elevated concentrations of both essential and non-essential metals can result in growth inhibition and toxicity symptoms. Plants possess a range of potential cellular mechanisms that may be involved in the detoxification...
| Veröffentlicht in: | Journal of experimental botany. - 1985. - 53(2002), 366 vom: 15. Jan., Seite 1-11 |
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| 1. Verfasser: | |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2002
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| Zugriff auf das übergeordnete Werk: | Journal of experimental botany |
| Schlagworte: | Journal Article Review Chelating Agents Heat-Shock Proteins Metalloproteins Metals, Heavy Metallothionein 9038-94-2 Phytochelatins 98726-08-0 mehr... |
| Zusammenfassung: | Heavy metals such as Cu and Zn are essential for normal plant growth, although elevated concentrations of both essential and non-essential metals can result in growth inhibition and toxicity symptoms. Plants possess a range of potential cellular mechanisms that may be involved in the detoxification of heavy metals and thus tolerance to metal stress. These include roles for the following: for mycorrhiza and for binding to cell wall and extracellular exudates; for reduced uptake or efflux pumping of metals at the plasma membrane; for chelation of metals in the cytosol by peptides such as phytochelatins; for the repair of stress-damaged proteins; and for the compartmentation of metals in the vacuole by tonoplast-located transporters. This review provides a broad overview of the evidence for an involvement of each mechanism in heavy metal detoxification and tolerance |
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| Beschreibung: | Date Completed 08.04.2002 Date Revised 08.04.2022 published: Print Citation Status MEDLINE |
| ISSN: | 1460-2431 |