Arsenic speciation in plants growing in arsenic-contaminated sites

Ruiz-Chancho, Maria José; López-Sánchez, José Fermı́n; Schmeisser, Ernst; Goessler, Walter; Francesconi, Kevin A.; Rubio, R.

doi:10.1016/j.chemosphere.2007.11.054

Cited by 74 publications

(45 citation statements)

References 41 publications

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“…In the case of aboveground plant biomass, poor extractability of arsenic compounds not exceeding 50% of total arsenic content was observed similarly as in our previous experiments [34] and reported by other authors [44]. Similarly, Ruiz-Chancho et al [45] reported extraction efficiencies ranging from 3.0% to 41.4%, with good agreement between samples from the same plant species where different extraction procedures with different ratios of water and methanol were compared. Schmidt et al [46] reported the highest extraction yield of 90% for ground leaf material of Tropaeolum majus with 0.1 mol L -1 phosphate buffer, pH 7.7, in a two-step extraction with a total extraction time of 24 h. They also compared different sample pretreatment approaches where the extraction of higher amounts of arsenic (50-70% of total arsenic) from non-ground leaves with deionized water in comparison with the buffer (20-40% of total arsenic) was observed because of the osmotic effects in this case.…”

Section: Contents Of Investigated Elements and Arsenic Compounds In Rsupporting

confidence: 71%

The contents of risk elements, arsenic speciation, and possible interactions of elements and betalains in beetroot (Beta vulgaris, L.) growing in contaminated soil

et al. 2010

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Abstract:The effect of enhanced soil risk element contents on the uptake of As, Cd, Pb, and Zn was determined in two pot experiments.Simultaneously, transformation of arsenic and its compounds in beetroot (Beta vulgaris L.) plants was investigated. The mobile fractions of elements were determined in 0.05 mol L -1 (NH 4 ) 2 SO 4 extracts and did not exceed 2% of total soil arsenic, 9% of total cadmium, 3% of total lead, and 8% of total zinc, respectively. Although the soils were extremely contaminated the mobile portions of the elements represented only a small fragment of the total element content. Arsenic contents in beet plants reached up to 25 mg As kg -1 in roots and 48 mg As kg -1 in leaves in the soil characterized by the highest mobile arsenic portion. Arsenic portions extractable with water and phosphate buffer from the beetroot samples did not show significant differences between the extraction agents but the extractability was affected by the arsenic concentration. Arsenic was almost quantitatively extractable from the samples with the lowest total arsenic concentration, whereas in the samples with the highest total arsenic concentration less than 25% was extractable. Arsenate was the dominant arsenic compound in the extracts (70% in phosphate buffer, 50% in water extracts). A small portion of dimethylarsinic acid, not exceeding 0.5%, was detected only in the sample growing in the soil with the highest arsenic concentration. The role of betalains (betanin, isobetanin, vulgaxanthin I and vulgaxanthin II) in transformation/detoxification of arsenic in plants was not confirmed in this experiment because the plants were able to grow in the contaminated soil without any symptoms of arsenic toxicity.

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Section: Contents Of Investigated Elements and Arsenic Compounds In Rsupporting

confidence: 71%

The contents of risk elements, arsenic speciation, and possible interactions of elements and betalains in beetroot (Beta vulgaris, L.) growing in contaminated soil

et al. 2010

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“…The extracts were combined and concentrated, and then diluted to 50 mL for analysis (Ruiz-Chancho et al, 2008). After filtration through 0.45 mm filter units, arsenic speciation was analyzed by AFS-LC.…”

Section: Total Arsenic and Arsenic Speciation Analysismentioning

confidence: 99%

Interactions of arsenic and phenanthrene on their uptake and antioxidative response in Pteris vittata L.

Sun

Yan

Liao

et al. 2011

Environmental Pollution

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“…Besides, the arsenic levels in rice growing in the arsenic contaminated area or inorganic arsenic from fish intake may be elevated. This might potentially increase arsenic exposure in the endemic area [77][78][79][80] . Future study of exposure assessment is needed.…”

Section: Discussionmentioning

confidence: 99%

Electrocardiogram (ECG) Abnormality Among Residents in Arseniasis-Endemic and Non-Endemic Areas of Southwestern Taiwan – A Study of Gene-Gene and Gene-Environment Interactions

Liao¹,

Li²,

Chen³

et al. 2012

Advances in Electrocardiograms - Clinical Applications

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Arsenic speciation in plants growing in arsenic-contaminated sites

Cited by 74 publications

References 41 publications

The contents of risk elements, arsenic speciation, and possible interactions of elements and betalains in beetroot (Beta vulgaris, L.) growing in contaminated soil

The contents of risk elements, arsenic speciation, and possible interactions of elements and betalains in beetroot (Beta vulgaris, L.) growing in contaminated soil

Interactions of arsenic and phenanthrene on their uptake and antioxidative response in Pteris vittata L.

Electrocardiogram (ECG) Abnormality Among Residents in Arseniasis-Endemic and Non-Endemic Areas of Southwestern Taiwan – A Study of Gene-Gene and Gene-Environment Interactions

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