PHYTOEXTRACTION OF METAL POLLUTED SOILS AROUND A Pb-Zn MINE BY CROP PLANTS

Ruiz, E.; Rodríguez, Luis Carbajal; Alonso-Azcárate, Jacinto; Rincón, Jesusa

doi:10.1080/15226510802565568

Cited by 26 publications

(7 citation statements)

References 62 publications

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“…The average pseudo-total Pb concentration in FE area was comparable with those reported by Bosso and Enzweiler [ 23 ] in soils from a mining district in Brazil, by Romero et al [ 24 ] in soils from the vicinity of a smelter from Mexico and by Anjos et al [ 10 ] in soils from the Bracal lead mine area, Portugal. However, our results were higher than those from soils around a Pb-Zn mine in Spain [ 25 ]. The pseudo-total Pb in soils from BE area situated far away from the pollution sources, ranged between 12 – 51 mg kg −1 dw and in all samples, was below the intervention threshold established by the Romanian legislation.…”

Section: Resultscontrasting

confidence: 90%

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Șenilă

2014

J Environ Health Sci Engineer

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BackgroundLead (Pb) is a toxic element that occurs in elevated concentrations in soils, mostly as a result of anthropogenic activities. This study assess the Pb bioavailability in soils from two areas with different contamination level using Diffusive Gradients in Thin-Films (DGT) technique, single extractions and metal contents of vegetables grown on contaminated soils.ResultsIn the area situated far from mining and smelting activities, the pseudo total Pb concentration (12 – 51 mg kg−1 dw) was found to be comparable to that normally found in unpolluted areas. In the area from the vicinity of the Pb smelter very high concentrations of pseudo-total Pb (850 – 9300 mg kg−1 dw) were found. The average concentrations of Pb accumulated in onion, garlic, carrot, and parsley grown on this contaminated soils were 18, 48, 38 and 91 mg kg−1 dw, respectively, and represent a risk factor for the consumers.ConclusionsThe present study demonstrates the utility of DGT technique for the assessment of Pb bioavailability, since, generally, better correlations are obtained between the effective Pb concentration and Pb concentration in vegetables than for bioavailable Pb determined by chemical extractions and Pb concentration in vegetables.

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Section: Resultscontrasting

confidence: 90%

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Șenilă

2014

J Environ Health Sci Engineer

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“…For example, Stipa barbata was reported to translocate Zn better than Cu. [39] A similar trend was obtained by Ruiz et al [34] for maize and sunflowers, whereby the order of TF values was reported as Zn > Cu > Pb. In contrast, Lakshmi et al [13] reported the order of Pb > Zn for Brachiaria ramosa.…”

Section: Translocation Factorsupporting

confidence: 75%

“…[30,34] TF represents the ability of a plant to translocate metals from the root to the shoot. The effects of the amendment treatments on the TF values of the metals are presented in Table 4.…”

Section: Translocation Factormentioning

confidence: 99%

The effects of application of agricultural wastes to firing range soil on metal accumulation inIpomoea aquaticaand soil metal bioavailability

Kamari

Yusoff

Putra

et al. 2015

Chemistry and Ecology

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“…BCF and TF are key values needed to estimate the potential of a plant for phytoextraction and phytostabilization. Plants exhibiting a shoot BCF of >1 are suitable for phytoextraction, and plants with a root BCF of >1 and a TF of <1 have the potential for phytostabilization (McGrath and Zhao 2003;Ruiz et al 2009). This study showed that both noninoculated and inoculated sorghum plants had TFs of <1 and BCFs of >1 for cadmium.…”

Section: Discussionmentioning

confidence: 99%

“…To assess the ability of Sorghum bicolor to translocate cadmium from roots to shoots, we calculated the translocation factor (TF). According to Ruiz et al (2009), the TF is the ratio of metal concentration in plant shoots to metal concentration in roots.…”

Section: Cadmiummentioning

confidence: 99%

Effect of cadmium stress and inoculation with a heavy-metal-resistant bacterium on the growth and enzyme activity of Sorghum bicolor

Muratova

Lyubun

German

et al. 2015

Environ Sci Pollut Res

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In this study, the influence of the heavy-metal-resistant rhizobacterial inoculant Rhodococcus ruber N7 on the growth and enzyme activity of Sorghum bicolor (L.) Moench. under cadmium stress was investigated in quartz sand pot experiments. The effect of cadmium and bacterium on the plant biomass accumulation, photosynthetic pigments, protein content, and the activities of plant-tissue enzymes such as peroxidase, laccase, and tyrosinase were estimated. It was shown that the presence of cadmium in the sand influenced the roots to a greater extent than it influenced the aerial parts of sorghum. This is manifested as increased protein content, reduced activity of peroxidase, and increased activity of laccase. Compared with cadmium stress, inoculation of plants with rhizobacterium R. ruber N7 has a stronger (and often opposite) effect on the biochemical parameters of sorghum, including a decrease in the concentration of protein in the plant, but increased the activity of peroxidase, laccase, and tyrosinase. Under cadmium contamination of sand, R. ruber N7 successfully colonizes the roots of Sorghum bicolor, survives in its root zone, and contributes to the accumulation of the metal in the plant roots, thereby reducing the concentration of the pollutant in the environment.

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PHYTOEXTRACTION OF METAL POLLUTED SOILS AROUND A Pb-Zn MINE BY CROP PLANTS

Cited by 26 publications

References 62 publications

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

The effects of application of agricultural wastes to firing range soil on metal accumulation inIpomoea aquaticaand soil metal bioavailability

Effect of cadmium stress and inoculation with a heavy-metal-resistant bacterium on the growth and enzyme activity of Sorghum bicolor

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