Metal uptake of Nerium oleander from aerial and underground organs and its use as a biomonitoring tool for airborne metallic pollution in cities

Vázquez, Saúl; Martin, A. J.; García, Manuel; Español, Cecilia; Navarro, Enrique

doi:10.1007/s11356-015-6002-5

Cited by 12 publications

(4 citation statements)

References 33 publications

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“…It is well known that N. oleander is an ornamental plant that can be adapted to extreme drought and other stressors, and is widely selected in phytoremediation applications, since it reduces HMs from various matrices through phytoaccumulation and phytostabilization. This has been confirmed by several studies in the literature, indicating that N. oleander is a suitable plant species for biomonitoring of heavy metal pollution [ 46 , 47 , 48 , 49 , 50 ]. It is clear that each metal has a different uptake mechanism, which is also influenced by the soil characteristics.…”

Section: Discussionsupporting

confidence: 70%

“…Therefore, it is important to note any study focusing on arsenic (As) phytoremediation, since As belongs to the same group of the periodic table (15) as antimony and they share similar chemical properties. It was reported that the translocation factor and the bioaccumulation values of As in N. oleander are 0.51 ± 0.25 and 0.13 ± 0.01, respectively, at an initial arsenic dose of 100 μM [ 49 ]. In our experiments, the Sb concentration in the roots was higher than in the above ground part for all treatments.…”

Section: Discussionmentioning

confidence: 99%

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Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Σερίδου

Monogyiou

Syranidou

et al. 2022

Plants

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Antimony (Sb) is considered to be a toxic metalloid of increasing prevalence in the environment. Although several phytoremediation studies have been conducted, research regarding the mechanisms of Sb accumulation and translocation within plants remains limited. In this study, soil from a shooting range was collected and spiked with an initial Sb(III) concentration of 50 mg/kg. A pot experiment was conducted to investigate whether Nerium oleander could accumulate Sb in the root and further translocate it to the aboveground tissue. Biostimulation of the soil was performed by the addition of organic acids (OAs), consisting of citric, ascorbic, and oxalic acid at low (7 mmol/kg) or high (70 mmol/kg) concentrations. The impact of irrigation with water supplemented with oxygen nanobubbles (O2NBs) was also investigated. The results demonstrate that there was a loss in plant growth in all treatments and the presence of OAs and O2NBs assisted the plant to maintain the water content at the level close to the control. The plant was not affected with regards to chlorophyll content in all treatments, while the antioxidant enzyme activity of guaiacol peroxidase (GPOD) in the roots was found to be significantly higher in the presence of Sb. Results revealed that Sb accumulation was greater in the treatment with the highest OAs concentration, with a bioconcentration factor greater than 1.0. The translocation of Sb for every treatment was very low, confirming that N. oleander plant cannot transfer Sb from the root to the shoots. A higher amount of Sb was accumulated in the plants that were irrigated with the O2NBs, although the translocation of Sb was not increased. The present study provides evidence for the phytoremediation capacity of N. oleander to bioaccumulate Sb when assisted by biostimulation with OAs.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Σερίδου

Monogyiou

Syranidou

et al. 2022

Plants

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“…(5) allow a higher density of sampling sites; and (6) allow an accessible approach for the analytical determination of trace elements [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Recognition of Trace Element Contamination Using Ficus macrophylla Leaves in Urban Environment

Alaimo¹,

Varrica²

2020

IJERPH

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Urban areas are characterized by numerous pollutants emitted by anthropic sources both in the form of solid and gaseous particulates. Biomonitoring is an easy, economical, and accessible approach for the determination of atmospheric pollutants. In this study, we used the leaves of Ficus macrophylla Desf. ex Pers., collected in the city of Palermo (Italy), to determine major and trace elements. Geogenic elements exhibited the highest concentrations, making up 99% of the weight of the analyzed elements (Ca, K, Mg, P, S, Na, Fe, and Al); they range 21,400 (Ca) to 122 µg g−1 (Al). The remaining elements showed median concentrations in the range 47.5–0.05 µg g−1 in the following order of abundance: Sr > Cu > Mn > Zn > Br > Rb > Ba > Pb > Cr > Sb > As > Mo = Sc. Cluster analysis, with Spearman’s coefficient to measure sample similarity, identified five main groups, namely, three clusters related to the geogenic background and marine spray; one cluster linked to elements essential to plants, and a final group attributed to the influence of traffic emissions. Calculated enrichment factors (EF) showed that the enrichments found for P and K were linked to plant metabolism; Na and Mg confirmed the role of sea spray; Cu and Zn underlined the contribution linked to anthropic processes and the role of micronutrients in plants.. As, Cr, and Mo had EF values ranging from 10 and 20, and Sb had EF > 90. From geochemical distribution maps of As, Cr, Mo, and Sb it was observed that metal and metalloid concentrations were higher in urban areas and immediately decreased as one moved away from these areas. Local pollution sources play a great role in trace element concentrations in airborne particulate matter. The present study confirms that Ficus macrophylla leaves are suitable for screening an urban environment to identify concentrations of inorganic chemicals, since they have high tolerance to pollution.

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“…The high rates of MTE accumulation at Bir Hadada is presumably not only linked to a large number of quarries, but also related emissions from intensive agricultural operations which degrade the environment through the release of pesticides and chemicals that generate associated toxic heavy metal particles suspended in the environment (Wei and Yang. 2010;Vázquez et al 2016;Kirpik et al 2017;Oumenskou et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Heavy metals accumulation in Nerium oleander leaves across urban areas in Setif region, Algeria

et al. 2021

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Abstract. Koucim MA, Belguidoum A, Lograda T, Ramdani M. 2021. Heavy metals accumulation in Nerium oleander leaves across urban areas in Setif region, Algeria. Biodiversitas 22: 3083-3091. Pollution by Metallic trace elements (MTE) has become one of the most serious environmental problems resulting from human activity. Plants, which are the base of the food chain, can take up MTE from the soil solution; hyper-accumulators can store high levels of heavy metals in their aerial parts at high concentrations. These plants can be used in phytoremediation. This study aimed to investigate the accumulation of MTE in the leaves of Nerium oleander to monitor environmental pollution of several areas in the province of Setif, Algeria. The samples of N. oleander leaves were collected from 20 urban areas in Setif Province. The concentrations of seven metallic trace elements (Cd, Mn, Pb, Sb, Cu, Bi and Fe) were determined using Flame Atomic Absorption Spectrophotometry (AASF). The results show that the concentrations of heavy metals in the leaves of N. oleander, in general, were very high, far exceeding the certified standard ranges. The order of MTE in the leaves was found as follows: Mn> Sb> Bi> Pb> Fe> Cu> Cd. Our findings indicate that although N. oleander showed a significant capacity to accumulate MTE, the urban areas of Setif province were highly polluted by heavy metals. The presence of metal ions in the aerial parts of the plant indicates that N. oleander is a hyper-accumulator of metals with tolerance to Mn, Sb, and Pb, and can be used as a bio-monitor. This opens up prospects for its application for soil phytoremediation.

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Metal uptake of Nerium oleander from aerial and underground organs and its use as a biomonitoring tool for airborne metallic pollution in cities

Cited by 12 publications

References 33 publications

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Recognition of Trace Element Contamination Using Ficus macrophylla Leaves in Urban Environment

Heavy metals accumulation in Nerium oleander leaves across urban areas in Setif region, Algeria

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