Metal uptake by medicinal plant species grown in soils contaminated by a smelter

Zheljazkov, V.; Jeliazkova, Ekaterina; Kovacheva, Natasha; Dzhurmanski, Anatoli

doi:10.1016/j.envexpbot.2008.07.003

Cited by 84 publications

(43 citation statements)

References 41 publications

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“…The maximum copper concentration in the biomass of the indigenous plants grown in surrounding mining wastes was 110 mg kg -1 by Stachys coccinea, in the same study, other indigenous plants showed copper concentrations in a range between 10 and 35 mg kg -1 (González and González-Chávez, 2006). Other study with medicinal plants (B. tripartita, Leonurus cardiaca, Marrubium vulgare, Melissa officinalis and Origanum heracleoticum) showed copper concentration in plant parts in the following order: higher in the roots, than leaves, than flowers, than stems (Zheljazkov et al, 2008). Furthermore, B. tripartite another specie of Bidens showed the lower copper concentrations in the roots, however, wild plants demonstrated copper concentrations ranging from 20 to 40 mg kg -1 of dry mass of the roots, in the shoots showed a ranging between 40 and 60 mg kg -1 of dry mass, and in the whole plants showed a ranging between 60 and 110 mg kg -1 of dry mass.…”

Section: Copper Phytoremediationsupporting

confidence: 57%

Evaluation of two Brazilian indigenous plants for phytostabilization and phytoremediation of copper-contaminated soils

et al. 2015

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Indigenous plants have been grown naturally and vigorously in copper contaminated soils. Thus, the aim of this study was to evaluate the phytoremediation ability of two indigenous plants naturally grown in two vineyard soils copper contaminated, and in a copper mining waste. However, it was evaluated the macro and micronutrient uptake and the potential of phytoremediation. So, a greenhouse study was carried out with Bidens pilosa and Plantago lanceolata in samples of vineyard soils (Inceptisol and Mollisol) copper contaminated, and in a copper mining waste. Plant growth, macro and micronutrient up take, tolerance index (TI), translocation factor (TF), metal extraction ratio (MER), bioaccumulation factor (BCF), plant effective number of the shoots (PENs), and plant effective number of the total plant (PENt) were analyzed. Both plants grown in vineyard soils showed high phytomass production and TI. P. lanceolata plants cultivated in the Inceptisol showed the highest copper concentrations in the shoots (142 mg kg -1 ), roots (964 mg kg -1) and entire plants (1,106 mg kg -1 ). High levels of copper were phytoaccumulated from the Inceptisol by B. pilosa and P. lanceolata with 3,500 and 2,200 g ha -1 respectively. Both B. pilosa and P. lanceolata plants showed characteristics of high copper hyperaccumulator. Results showed that both species play an important role in the natural copper phytoaccumulation in both vineyard soils contaminated with copper, being important to its phytoremediation. , respectivamente, quando cultivadas em Neossolo. Ambas as espécies apresentaram características hiperacumuladoras de cobre. Os resultados mostraram que estas espécies desempenham um papel importante na fitoacumulação de cobre naturalmente em ambos os solos de vitivinicultura contaminados com cobre, sendo importantes para a fitorremediação. KeywordsPalavras-chave: Bidens pilosa, areas contaminadas com cobre, fitoacumulação de cobre, Plantago lanceolata.

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Section: Copper Phytoremediationsupporting

confidence: 57%

Evaluation of two Brazilian indigenous plants for phytostabilization and phytoremediation of copper-contaminated soils

et al. 2015

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“…These groups also concluded that several aromatic plants they tested, either in pot experiments similar to ours (Zheljazkov et al, 2006), experiments with soil from contaminated fields (Zheljazkov et al, 2008b, Stancheva et al, 2010, or hydroponics experiment (Kováčik et al, 2006, Zheljazkov et al, 2008a) accumulated significant amounts of heavy metals, mainly in their root systems, with fractions of heavy metals to be found in the aboveground parts of the tested plants.…”

Section: Area (%)mentioning

confidence: 79%

Cultivation of Medicinal and Aromatic Plants in Heavy Metal-Contaminated Soils

2016

Issue 3

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CULTIVATION OF MEDICINAL AND AROMATIC PLANTS IN HEAVY METAL-CONTAMINATED SOILSLYDAKIS-SIMANTIRIS N. ABSTRACTThe growing number of polluted land areas makes the question of rehabilitation and safe/effective use of these areas increasingly imperative. For land polluted by heavy metals, the possibility of transferring the toxic pollutants to humans through the food chain further increases the importance of the safe management of polluted lands. We examined the possibility of using heavy metal-polluted areas for growing specific aromatic plants, which can be used either as food herbs/infusions, or to produce high value products. In a pot experiment, chamomile, sage and thyme plants were exposed to a range of concentrations of Cd, Pb, and Ni in the soil. Toxic metal levels were determined in the roots, leaves and flowers (for chamomile) of the plants. All three plants accumulated relatively high amounts of metals in their roots, whereas the aboveground parts exhibited lower accumulation capacity. Regardless the levels of metal accumulation, the quality of essential oils from chamomile, sage, and thyme was not affected and in all cases the extracted essential oils were free of heavy metals. Our results suggest that the aromatic plants under study cannot be consumed either as food additives or as infusions. However, under strict control of the cultivations, heavy metal-contaminated areas can be used for the production of essential oils from aromatic plants.

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“…The BCFs observed in this field study were slightly low due to the high cadmium concentration and low cadmium availability in the soil. The bioavailability factor in some medicinal plants planted in heavy metal-contaminated soil increased with decreasing cadmium concentrations in the soil (Zheljazkov et al 2008b). The causative factor leading to a low BCF might be due to cadmium competition with other metals in the soil.…”

Section: Resultsmentioning

confidence: 99%

“…According to this study, the cadmium content in the roots was higher than that of above-ground tissues for both harvest periods (Table 2). Zheljazkov et al (2008b) reported that cadmium, lead, and copper accumulated primarily in the roots, whereas higher concentrations of manganese and zinc were found in the leaves of several medicinal plants.…”

Section: Resultsmentioning

confidence: 99%

Bacterial-assisted cadmium phytoremediation by Ocimum gratissimum L. in polluted agricultural soil: a field trial experiment

Prapagdee

Khonsue

2015

Int. J. Environ. Sci. Technol.

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A field study of cadmium phytoremediation by Ocimum gratissimum L. and the potential enhancement by two cadmium-resistant bacteria, Ralstonia sp. TISTR 2219 and Arthrobacter sp. TISTR 2220, were explored in a cadmium-polluted agricultural area. The results demonstrated the ability of one of the bacterial strains to promote cadmium accumulation in O. gratissimum L. planted in soil with cadmium concentrations till 65.2 mg kg -1 . After transplantation in contaminated soil for 2 months, soil inoculation with Arthrobacter sp. enhanced cadmium accumulation in the roots, above-ground tissues, and whole plant of O. gratissimum L. by 1.2-fold, 1.4-fold, and 1.1-fold, respectively, compared with the untreated control. The presence of Arthrobacter sp. in soil facilitated cadmium phytoremediation in O. gratissimum L. similar to that of an EDTA application. Seeds of O. gratissimum L. grown in polluted soil contained undetectable to negligible concentrations of cadmium. Significant increases in the bioconcentration and translocation factors of O. gratissimum L. were observed in Arthrobacter sp.-inoculated plants at only 2 months post-transplant compared with the uninoculated control. The highest percentage of cadmium removal was found in soil used to cultivate EDTA-treated O. gratissimum L., followed by an Arthrobacter sp.-inoculated plant. Our findings suggest that the synergistic use of Arthrobacter sp. with O. gratissimum L., an essential oil-producing crop, could be a feasible economic and environmental option for the reclamation of cadmiumpolluted areas.

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Metal uptake by medicinal plant species grown in soils contaminated by a smelter

Cited by 84 publications

References 41 publications

Evaluation of two Brazilian indigenous plants for phytostabilization and phytoremediation of copper-contaminated soils

Evaluation of two Brazilian indigenous plants for phytostabilization and phytoremediation of copper-contaminated soils

Cultivation of Medicinal and Aromatic Plants in Heavy Metal-Contaminated Soils

Bacterial-assisted cadmium phytoremediation by Ocimum gratissimum L. in polluted agricultural soil: a field trial experiment

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