Accumulation of chromium and copper by the aquatic moss<i>fontinalis antipyretica</i>L. ex hedw transplanted in a metal‐contaminated river

Mouvet, Christophe

doi:10.1080/09593338409384309

Cited by 69 publications

(23 citation statements)

References 17 publications

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“…pesticides) and heavy metals, leading to a concentration inside the plants several times higher than in the surrounding environment [1,2]. Due to their physiological and environmental characteristics and the fact they are widespread in most European rivers [3] aquatic mosses have been successfully used as biological indicators of surface waters (rivers, lakes) contamination by heavy metals [4][5][6][7][8][9][10]. Their accumulation capacity allows an integration of casual fluctuations in metal concentration in the water during long periods of time [11].…”

Section: Introductionmentioning

confidence: 99%

Uptake and release of zinc by aquatic bryophytes (Fontinalis antipyretica L. ex. Hedw.)

Martins

Boaventura

2002

Water Research

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The zinc uptake and posterior release by an aquatic bryophyte-Fontinalis antipyretica L. Ex Hedw.-was experimentally studied in laboratory exposing the plants to different zinc concentrations in the range, 1.0-5.0 mg l À1 , for a 144 h contamination period, and then exposed to metal-free water for a 120 h decontamination period. The experiments were carried out in perfectly mixed contactors at controlled illumination, using mosses picked out in February 1997, with a background initial zinc concentration of 263 mg g À1 (dry wt.). A first-order mass transfer kinetic model was fitted to the experimental data to determine the uptake and release constants, k 1 and k 2 ; the zinc concentration in mosses at the end of the uptake period, C mu ; and at the equilibrium, for the contamination and decontamination stages, C me and C mr ; respectively. A bioconcentration factor, BCF ¼ k 1 =k 2 (zinc concentration in the plant, dry wt./zinc concentration in the water) was determined. A biological elimination factor defined as BEF ¼ 1 À C mr =C mu was also calculated. BCF decreases from about 4500 to 2950 as Zn concentration in water increases from 1.05 to 3.80 mg l À1 . BEF is approximately constant and equal to 0.80. Comparing Zn and Cu accumulation by Fontinalis antipyretica, it was concluded that the uptake rate for Zn (145 h À1 ) is much lower than for Cu (628 h À1 ) and the amount retained by the plant decreased by a factor of about seven. r

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Section: Introductionmentioning

confidence: 99%

Uptake and release of zinc by aquatic bryophytes (Fontinalis antipyretica L. ex. Hedw.)

Martins

Boaventura

2002

Water Research

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“…Due to their characteristics (physiological, ecological, etc.) and the fact that they are widespread in most European rivers, aquatic mosses have been successfully used as biological indicators of surface waters contamination by heavy metals [14][15][16][17][18][19]. Studies on uptake and release of heavy metals by the aquatic moss Fontinalis antipyretica have also been accomplished [13,20,21].…”

Section: Introductionmentioning

confidence: 99%

Cadmium(II) and zinc(II) adsorption by the aquatic moss Fontinalis antipyretica: effect of temperature, pH and water hardness

2004

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The biosorption of cadmium(II) and zinc(II) ions onto dried Fontinalis antipyretica, a widely spread aquatic moss, was studied under different values of temperature, initial pH and water hardness. The equilibrium was well described by Langmuir adsorption isotherms. Maximum biosorption capacity of cadmium was independent on temperature and averaged 28.0 mg g À1 moss, whereas for zinc, capacity increased with temperature, from 11.5 mg g À1 moss at 5 C to 14.7 mg g À1 moss at 30 C. Optimum adsorption pH value was determined as 5.0 for both metal ions. Cadmium uptake was unaffected by the presence of calcium ions, but zinc sorption was improved when water hardness increased from 101.1 to 116.3 mg CaCO 3 l À1 . Inversely, as hardness increases, the competition with calcium ions strongly reduces the affinity of the biosorbent for zinc.

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“…This, combined with a tolerance to elevated levels of organic and inorganic pollutants, makes these species good candidates for bio-monitors of U contamination. 50,51 Mosses also possess the ability to detect and differentiate between chronic and acute U exposure. Extracellular metal is easily absorbed and readily exchangeable with its environment reflecting current or sporadic spikes in environmental contamination.…”

Section: Resultsmentioning

confidence: 99%

Bio-monitoring for uranium using stream-side terrestrial plants and macrophytes

et al. 2012

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This study evaluated the abilities of various plant species to act as bio-monitors for environmental uranium (U) contamination. Vegetation and soil samples were collected from a U processing facility*.The water-way fed from facility storm and processing effluents was the focal sample site as it represented a primary U transport mechanism. Soils and sediments from areas exposed to contamination possessed U concentrations that averaged 630 mg U kg Strontium is chemically and physically similar to calcium (Ca) and magnesium (Mg), which were also positively-correlated with U. The correlation with U and these plant nutrient minerals, including iron (Fe), suggests that active uptake mechanisms may influence plant U accumulation.

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Accumulation of chromium and copper by the aquatic mossfontinalis antipyreticaL. ex hedw transplanted in a metal‐contaminated river

Cited by 69 publications

References 17 publications

Uptake and release of zinc by aquatic bryophytes (Fontinalis antipyretica L. ex. Hedw.)

Uptake and release of zinc by aquatic bryophytes (Fontinalis antipyretica L. ex. Hedw.)

Cadmium(II) and zinc(II) adsorption by the aquatic moss Fontinalis antipyretica: effect of temperature, pH and water hardness

Bio-monitoring for uranium using stream-side terrestrial plants and macrophytes

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