Cellular mechanisms for heavy metal detoxification and tolerance
Hall, J.L. (2002) Cellular mechanisms for heavy metal detoxification and tolerance. Journal of Experimental Botany, 53, (366), 1-11.
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Description/Abstract
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.
| Item Type: | Article |
|---|---|
| ISSNs: | 0022-0957 (print) |
| Related URLs: | |
| Keywords: | detoxification, heat shock proteins, heavy metal tolerance, metallothioneins, mycorrhiza, phytochelatins, plasma membrane, vacuolar compartmentation |
| Subjects: | S Agriculture > SB Plant culture Q Science > QH Natural history > QH301 Biology |
| Divisions: | University Structure - Pre August 2011 > School of Biological Sciences |
| Item ID: | 55725 |
| Date Deposited: | 05 Aug 2008 |
| Last Modified: | 01 Jun 2011 04:56 |
| Contributors: | Hall, J.L. (Author) |
| Date: | 1 January 2002 |
| Status: | Published |
| Contact Email Address: | jh3@soton.ac.uk |
| URI: | http://eprints.soton.ac.uk/id/eprint/55725 |
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