Zinc distribution and zinc-binding forms in Phragmites australis under zinc pollution

Jiang, Xingyu; Wang, Changhai

doi:10.1016/j.jplph.2007.05.011

Cited by 64 publications

(26 citation statements)

References 32 publications

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“…A striking example of TM accumulation in the CW may also be found in Phragmites australis, which is considered to be a plant with a high detoxification and phytoremediation potential. Here, Zn concentrations followed a gradient with the sequence: intercellular space \ CW \ vacuole \ cytoplasm, indicating that most of the Zn was accumulated within the apoplast (Jiang and Wang 2008).…”

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 95%

“…The physiological advantage of metal precipitation in the CW is its strong metabolic inactivation (Jiang and Wang 2008). Until recently, it was believed that TMs bound to CW compounds, mainly low-methylesterified pectins, are not chemically active, steadily immobilized and do not enter the protoplast.…”

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 99%

“…How trace metals can enter plant cell wall Trace metals may enter the CW during the uptake of water solution from the environment (Malone et al 1974;Hall 2002;Jiang and Wang 2008) and as a result of TM removal from the protoplast during the sequestration process. The latter may include (1) exclusion of TMs due to the activity of special metal transporters present in the PM (for review, Colangelo and Guerinot 2006;Krämer et al 2007) and (2) removal via vesicular secretion pathway by exocytosis (Fig.…”

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 99%

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The cell wall in plant cell response to trace metals: polysaccharide remodeling and its role in defense strategy

2010

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This review paper is focused predominantly on the role of the cell wall in the defense response of plants to trace metals. It is generally known that this compartment accumulates toxic divalent and trivalent metal cations both during their uptake by the cell from the environment and at the final stage of their sequestration from the protoplast. However, from results obtained in recent years, our understanding of the role played by the cell wall in plant defense response to toxic metals has markedly altered. It has been shown that this compartment may function not only as a sink for toxic trace metal accumulation, but that it is also actively modified under trace metal stress. These modifications lead to an increase in the capacity of the cell wall to accumulate trace metals and a decrease of its permeability for trace metal migration into the protoplast. One of the most striking alterations is the enhancement of the level of low-methylesterified pectins: the polysaccharides able to bind divalent and trivalent metal ions. This review paper will present the most recent results, especially those that are concerned with polysaccharide level, composition and distribution under trace metal stress, and describe in detail the polysaccharides responsible for metal binding and immobilization in different groups of plants (algae and higher plants). The review also contains information related to the entry pathways of trace metals into the cell wall and their detection methods.

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Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 95%

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 99%

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 99%

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The cell wall in plant cell response to trace metals: polysaccharide remodeling and its role in defense strategy

2010

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“…Typha latifolia has a strong capacity of absorbing and enriching Pb, Zn, Cd and Cu, and they were mainly enriched at the root of plant [22]. Jiang and Wang [23] …”

Section: Enrichment Of Heavy Metalsmentioning

confidence: 99%

Review of Ecological Floating Bed Restoration in Polluted Water

Deng¹,

Ni²

2013

JWARP

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Using Ecological Floating Bed (EFB) to purify polluted water is a process of ecological restoration at virgin position, as well as a complicated physical, chemical and biological process. Its core is utilizing aquatic plants and root's microbes to absorb nitrogen and phosphorus elements, degrade organic matter and enrich heavy metal. EFB has been applied to some water pollution control projects at home and abroad, and has got several achievements. However, there are some factors influenced the removal rate of pollutants, including plants, temperature, seasons, processing time, coverage and initial concentration of pollutants. In the future, the development orientation has been prospected from plant and its combinations, the transformation of EFB structure and the utilization of aquatic resources, and probed the technology of EFB's building and management, to implement the win-win of landscape benefit and ecological function.

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“…These plants possess high phytoremediation as well as detoxification traits and have been excessively utilized in the construction of artificial wetlands for the treatment of heavy metal pollution of industrial drainage water [113]. With the recent improvements in the application of scientific knowledge of phytoremediation for practical purposes, especially in pollution eradication and the search for greener alternatives for pollution enucleation, the interest has been directed toward reed plants reactions to heavy metal environmental stresses [114,115]. However, how reed plant cells become tolerant to toxic heavy metal levels and why they are hyper-accumulator of these metals is unknown [114].…”

Section: Use Of Plants For the Treatment Of Pollutantsmentioning

confidence: 99%

The Pollution of Water by Trace Elements Research Trends

Alakeel¹

2018

Advances in Bioremediation and Phytoremediation

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Water pollution has been a growing issue for the last decades. This is mainly because of the boost in human population, and the motivations that lead to technological advances for the welfare of the society. Water pollution originates from different sources such as agricultural, municipal, industrial, and landfills drainage waters. These pollutants, which are either organic, nutrient, or heavy metals pollutants, are very deleterious to the natural ecosystems and eventually harmful to humans. Different procedures have been proposed for handling heavy metals water pollution, which encompass electro-osmosis, ion exchange, electrokinetic, sludge activation, as well as phytoextraction. Water contaminants are also removed using flotation, membrane filtration, aeration, precipitation, coagulation-flocculation, ion exchange, and electrochemical treatment. These procedures are costly and have prompted the use of other techniques, such as phytoremediation. Phytoremediation involves the utilization of plant species to alleviate the impacts of environmental pollution. It could be implemented to eliminate pollutants from various natural ecosystems including water, soil, and air or to develop new vegetation growth on disturbed or barren ground. Different plant species have been used for phytoremediation. This chapter addresses trace elements pollution of natural water resources in details and the abilities of Aquatic plant communities such as Reed plants (Phragmites australis) to absorb soluble trace elements from water.

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Zinc distribution and zinc-binding forms in Phragmites australis under zinc pollution

Cited by 64 publications

References 32 publications

The cell wall in plant cell response to trace metals: polysaccharide remodeling and its role in defense strategy

The cell wall in plant cell response to trace metals: polysaccharide remodeling and its role in defense strategy

Review of Ecological Floating Bed Restoration in Polluted Water

The Pollution of Water by Trace Elements Research Trends

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