Metal-tolerant moss Scopelophila cataractae accumulates copper in the cell wall pectin of the protonema

Konno, Haruyoshi; Nakashima, Satoru; Katoh, Kenji

doi:10.1016/j.jplph.2009.09.011

Cited by 82 publications

(27 citation statements)

References 41 publications

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“…Moreover, uronic acid was 1.6-fold higher in Cu-treated CWs than in the control CWs. These data strongly suggested a marked binding of Cu by pectins in S. cataractae CW (Konno et al 2010).…”

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 58%

“…Simultaneously, no growth inhibition of this moss was observed. Thus, it may be concluded that binding Cu by pectins within the CW was an effective defense response against this metal and allowed this plant to adapt successfully to Cu-enriched soils (Konno et al 2010). Furthermore, one of the most common hyperaccumulators, Thlaspi caerulescens, accumulated more than 50% of TMs in its CW (Salt et al 1999).…”

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 98%

“…Recent papers indicate that the CW is still recognized as one of the main compartments for TM accumulation (e.g., Wójcik et al 2005;Islam et al 2007;Małecka et al 2008;Konno et al 2010;Meyers et al 2009) and can contain high amounts of TMs (Kopittke et al 2007(Kopittke et al , 2008Konno et al 2010;Krzesłowska et al 2009aKrzesłowska et al , 2010.…”

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: 58%

Section: Detection Of Tms In Plant Cell Wallmentioning

confidence: 98%

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 suggests that the surface of S. cataractae adsorbed the zinc in the early period and S. cataractae absorbed it in the cell wall. 15,16 Zinc in the wastewater was decreased from 28 mg dm -3 to 16 mg dm -3 by this bioreactor and S. cataractae.…”

Section: Production Of Ethanol By a Simultaneous Saccharification Andmentioning

confidence: 90%

“…A zinc accumulation was tightly bound to the homogalacturonan of the cell wall pectin. 15,16 Under low steam explosion conditions, research suggests that zinc remains in the cell wall pectin. Under high steam explosion conditions, the cell wall component, i.e., lignin, undergoes condensation reactions with water-soluble products, such as zinc.…”

Section: Development Of Waste Reduction System Of Wastewater Treatmenmentioning

confidence: 99%

Development of Waste Reduction System of Wastewater Treatment Process Using a Moss: Production of Useful Materials From Remainder of a Moss

Kobayashi

2012

Int. J. Mod. Phys. Conf. Ser.

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Landfill leachate pollution presents a serious environmental problem. It would be valuable to develop a sustainable method, one that is inexpensive and requires little energy, to eliminate the pollution and dispose of the waste. In a previous study, we reported the results of a leachate treatment for landfills in which we relied on the moss, Scopelophia cataractae, to support a sustainable method of waste reduction. In this study, for the development of a waste reduction system of landfill leachate treatment, we attempted to produce zinc as useful metal and ethanol as fuel from the remainder of moss after wastewater treatment. Steam explosions, which were used as physicochemical pretreatments to expose the raw material to saturated steam under high pressure and temperature, were used to pretreat the moss. By electrolysis, zinc recovered, and the maximum zinc recovery after wastewater treatment was 0.504 at 2.0 MPa steam pressure (211 o C) and 5 min steaming time. After that time, by simultaneous saccharification and fermentation using a Meicelase and Saccharomyces cerevisiae AM12, 0.42 g dm -3 of the maximum ethanol concentration was produced from 10 g dm -3 of exploded moss at 2.5 MPa steam pressure (223 o C) and 1 min steaming time.

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Phytohormonal Roles in Plant Responses to Heavy Metal Stress: Implications for Using Macrophytes in Phytoremediation of Aquatic Ecosystems

Nguyen

Sesin

Kisiała

et al. 2020

Enviro Toxic and Chemistry

114

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Heavy metals can represent a threat to the health of aquatic ecosystems. Unlike organic chemicals, heavy metals cannot be eliminated by natural processes such as their degradation into less toxic compounds, and this creates unique challenges for their remediation from soil, water, and air. Phytoremediation, defined as the use of plants for the removal of environmental contaminants, has many benefits compared to other pollution-reducing methods. Phytoremediation is simple, efficient, cost-effective, and environmentally friendly because it can be carried out at the polluted site, which simplifies logistics and minimizes exposure to humans and wildlife. Macrophytes represent a unique tool to remediate diverse environmental media since they can accumulate heavy metals from contaminated sediment via roots, from water via submerged leaves, and from air via emergent shoots. In this review, a synopsis is presented about how plants, especially macrophytes, respond to heavy metal stress and we propose potential roles that phytohormones can play in the alleviation of metal toxicity in the aquatic environment. We focus on the uptake, translocation, and accumulation mechanisms of heavy metals in organs of macrophytes and give examples of how phytohormones interact with plant defense systems under heavy metal exposure. We advocate for a more in-depth understanding of these processes to inform more effective metal remediation techniques from metal-polluted waterbodies.

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Metal-tolerant moss Scopelophila cataractae accumulates copper in the cell wall pectin of the protonema

Cited by 82 publications

References 41 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

Development of Waste Reduction System of Wastewater Treatment Process Using a Moss: Production of Useful Materials From Remainder of a Moss

Phytohormonal Roles in Plant Responses to Heavy Metal Stress: Implications for Using Macrophytes in Phytoremediation of Aquatic Ecosystems

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