Combined effects of cadmium and zinc on growth, tolerance, and metal accumulation in Chara australis and enhanced phytoextraction using EDTA

Clabeaux, Bernadette L.; Navarro, Divina A.; Aga, Diana S.; Bisson, Mary A.

doi:10.1016/j.ecoenv.2013.08.014

Cited by 35 publications

(9 citation statements)

References 29 publications

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“…Thus, C. vulgaris appeared of interest for developing a phytoremediation strategy. However, the bioconcentration factors for Cd and Zn in Chara were far lower than those reported by Clabeaux et al (2011Clabeaux et al ( , 2013,) but these authors used instead of natural sediments a low Ca growth medium and artificially spiked commercial topsoil which represent artificial conditions. The Pb contents in C. globularis were also far lower than those reported by Gao and Yan (2012) in controlled conditions.…”

Section: Phytoextraction Potentialitymentioning

confidence: 85%

Trace metal extraction and biomass production by spontaneous vegetation in temporary Mediterranean stormwater highway retention ponds: Freshwater macroalgae (Chara spp.) vs. cattails (Typha spp.)

Laffont-Schwob

Triboit

Prudent

et al. 2015

Ecological Engineering

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Section: Phytoextraction Potentialitymentioning

confidence: 85%

Trace metal extraction and biomass production by spontaneous vegetation in temporary Mediterranean stormwater highway retention ponds: Freshwater macroalgae (Chara spp.) vs. cattails (Typha spp.)

Laffont-Schwob

Triboit

Prudent

et al. 2015

Ecological Engineering

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“…More importantly, they are capable of calcifying and calcite is known to bind and sequester heavy metals (Gomes and Asaeda, 2013). The macrophyte alga Chara australis can accumulate Cd and be used for remediation of contaminated soils (Clabeaux et al, 2013). Studies carried out on another species of macrophyte, Chara fragilis , showed that binding of uranyl species to the cell walls was mainly due to the presence of calcite (Daković et al, 2008).…”

Section: The Cell Wall As a Barrier To CDmentioning

confidence: 99%

Target or barrier? The cell wall of early- and later-diverging plants vs cadmium toxicity: differences in the response mechanisms

et al. 2015

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Increasing industrialization and urbanization result in emission of pollutants in the environment including toxic heavy metals, as cadmium and lead. Among the different heavy metals contaminating the environment, cadmium raises great concern, as it is ecotoxic and as such can heavily impact ecosystems. The cell wall is the first structure of plant cells to come in contact with heavy metals. Its composition, characterized by proteins, polysaccharides and in some instances lignin and other phenolic compounds, confers the ability to bind non-covalently and/or covalently heavy metals via functional groups. A strong body of evidence in the literature has shown the role of the cell wall in heavy metal response: it sequesters heavy metals, but at the same time its synthesis and composition can be severely affected. The present review analyzes the dual property of plant cell walls, i.e., barrier and target of heavy metals, by taking Cd toxicity as example. Following a summary of the known physiological and biochemical responses of plants to Cd, the review compares the wall-related mechanisms in early- and later-diverging land plants, by considering the diversity in cell wall composition. By doing so, common as well as unique response mechanisms to metal/cadmium toxicity are identified among plant phyla and discussed. After discussing the role of hyperaccumulators’ cell walls as a particular case, the review concludes by considering important aspects for plant engineering.

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“…2010; Clabeaux et al . 2013). The regulation of pigment content levels is a protective mechanism against environmental stresses (Aro et al .…”

Section: Discussionmentioning

confidence: 99%

Immediate response of Chara braunii exposed to zinc and hydrogen peroxide

Herbst

Ranawakage

Asaeda

et al. 2021

Phycological Research

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SUMMARY The immediate effect of zinc (Zn) and hydrogen peroxide (H2O2) in Chara braunii was analyzed in short‐time exposure experiments. The exposure concentrations were 12.3, 18.4, and 24.5 μmol L−1 H2O2, 12, 60, and 120 mg L−1 Zn, and 12.3 μmol L−1 H2O2 + 12 mg L−1 Zn, 12.3 μmol L−1 H2O2 + 60 mg L−1 Zn, and 18.4 μmol L−1 H2O2 + 12 mg L−1 Zn. The stress response of C. braunii was analyzed by measuring photosynthetic photosystem II activity, chlorophyll a and b and carotenoid contents, the H2O2 concentration, and antioxidant enzyme activities of ascorbic peroxidase, catalase, and guaiacol peroxidase. The short‐term addition of Zn reduced pigment contents in C. braunii. Chlorophyll a and b and carotenoid contents in H2O2‐exposed C. braunii were as high as in control plants. Photosynthesis was reduced in H2O2‐treated C. braunii and the short‐term addition of Zn did not affect the electron transport rate. H2O2 concentration and antioxidant enzyme activities in C. braunii were not significantly different between control and exposed plants. Trends of enzymatic adaptation were described: the H2O2‐induced stress response was characterized by increased antioxidant enzyme activities, whereas Zn inactivated catalase in C. braunii.

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Combined effects of cadmium and zinc on growth, tolerance, and metal accumulation in Chara australis and enhanced phytoextraction using EDTA

Cited by 35 publications

References 29 publications

Trace metal extraction and biomass production by spontaneous vegetation in temporary Mediterranean stormwater highway retention ponds: Freshwater macroalgae (Chara spp.) vs. cattails (Typha spp.)

Trace metal extraction and biomass production by spontaneous vegetation in temporary Mediterranean stormwater highway retention ponds: Freshwater macroalgae (Chara spp.) vs. cattails (Typha spp.)

Target or barrier? The cell wall of early- and later-diverging plants vs cadmium toxicity: differences in the response mechanisms

Immediate response of Chara braunii exposed to zinc and hydrogen peroxide

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