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Vacuoles and cell walls or detoxified
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- Because of their larger biomass, they can gather heavy metals using ion channels and metal transport proteins through roots and store them in the above-ground organs where they are either stored in vacuoles and cell walls or detoxified.
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Feb 1, 2011 · According to the tolerance/disposal hypothesis, the peculiar hyperaccumulation pattern would allow plants to take heavy metals away from the roots by sequestering them in tolerant leaf tissues. This eliminates them from the plant body by shedding the high-metal aerial organ.
- Heavy Metal Hyperaccumulating Plants
The term “hyperaccumulator” was coined [11] for plants (Fig....
- Morphogenetic, Ultrastructural and Physiological Damages Suffered by Submerged Leaves of Elodea Canadensis Exposed to Cadmium
A large amount of Cd was accumulated in the young leaves...
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Beyond what has been reviewed previously [7, 8], we...
- Transition Metal Transport
Consequently, plants appear to lack full control over the...
- Uptake and Accumulation of Arsenic by 11 Pteris Taxa From Southern China
A field survey was conducted at a deserted arsenic (As) mine...
- Fundamentals and Potential Application to Phytoremediation
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- Phytoremediation of Soil Metals
A timely review of a rapidly progressing research area...
- Detection of Nickeliferous Rocks by Analysis of Herbarium Specimens of Indicator Plants
Relatively few plants are able to accumulate concentrations...
- Heavy Metal Hyperaccumulating Plants
Three basic hallmarks distinguish hyperaccumulators from related non-hyperaccumulating taxa: a strongly enhanced rate of heavy metal uptake, a faster root-to-shoot translocation and a greater ability to detoxify and sequester heavy metals in leaves.
Mar 20, 2014 · Plants are able to colonize such sites due to several mechanisms of heavy metal tolerance. Understanding of these pathways enables different fruitful approaches like phytoremediation and biofortification.
- Katrin Viehweger
- k.viehweger@hzdr.de
- 2014
May 15, 2023 · Different transporters sequester toxic metal ions into vacuoles, and carbohydrate metabolism modulation facilitates heavy metal tolerance. Plants that fail to activate such mechanisms face severe metal toxicity, and those able to activate it successfully tolerate the toxic metals.
Apr 29, 2013 · Excess heavy metals affect plant physiology by inducing stress symptoms, but many plants have adapted to avoid the damaging effects of metal toxicity, using strategies such as metal chelation, transport and compartmentalization.
- Giovanni DalCorso, Anna Manara, Antonella Furini
- 2013
Jan 1, 2012 · Heavy metal hyperaccumulators are plants that can tolerate and accumulate extremely high concentrations of metals in their shoots. This reflects the enhancement of physiological processes such as metal uptake, mobilization, translocation, and detoxification by chelation and vacuolar sequestration.
Aug 19, 2022 · Plants reportedly take up and accumulate large amounts of heavy metals as an allelopathic defense strategy against competing plants; metal accumulation can also serve as a defense against drought or as a defense strategy against herbivores and pathogens (Table 1).
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