Lead accumulation in plants grown in polluted soils. Screening of native species for phytoremediation

Salazar, María Julieta; Pignata, María Luisa

doi:10.1016/j.gexplo.2013.11.003

Cited by 120 publications

(59 citation statements)

References 30 publications

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“…The increased leaf thickness reduces CO 2 assimilation, transpiration and stomatal conductance in the plants planted on roadside. The relationship between traits of present study is similar to other studies conducted worldwide (Stanghellini and van Meurs 1992;Emberson et al 2001;Salazar and Pignata 2014;Khedhar and Gadge 2014;Jochner et al 2015;Calfapietra et al 2015).…”

Section: Response Of Biochemical Indicators: Lead and Proline In Leafsupporting

confidence: 91%

“…Wagela et al (2002) reported maximum accumulation of lead content in leaf tissue of Dalbergia sissoo grown at roadside in urban area of Indore city of India and findings was similar to this study. Lead accumulation in leaves of trees was also reported by Salazar and Pignata (2014) under polluted environment. The study carried out at worldwide and under this study showed that lead and proline accumulation in leaf tissues in plants of urban area can be used as indicator of tolerance and adaption for screening of plant species which can uptake and absorb the higher amount of heavy metals and could be planted under urban area where air pollution is supposed to be more in future due to traffic movements and other anthropogenic pressure.…”

Section: Response Of Biochemical Indicators: Lead and Proline In Leafmentioning

confidence: 61%

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Physiological functioning of Lagerstroemia speciosa L. under heavy roadside traffic: an approach to screen potential species for abatement of urban air pollution

et al. 2017

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The mitigation potential of avenue tree species needs a sound understanding, especially for landscape planning or planting tree species on roadside, especially in city limits where there is huge traffic due to more number of vehicles. A preliminary study was conducted to investigate the impact of heavy traffic movement and pollution thereof on physiological functioning of Lagerstroemia speciosa trees planted on roadside in terms of carbon absorption, mitigation potential and adaptive behavior. Trees on roadside exhibited reduced carbon assimilation (36.7 ± 2.4%) and transpiration rate (42.14 ± 2.9%), decreased stomatal conductance (66.85 ± 3.87%), increased stomatal resistance (212.2 ± 11.25%), more leaf thickness (40.54 ± 3.25) and water use efficiency (9.4 ± 0.87%), and changes in lead (179.31 ± 10.24%) and proline (15.61 ± 1.92%) concentration in leaf tissues when compared to less traffic area (FRI campus). The impacts were also witnessed in the form of enhanced vapour pressure deficit of air (63.18 ± 4.94%) and leaf (45.72 ± 3.25%), and air temperature (3.2 ± 0.16%) and leaf temperature (9.0 ± 0.82%) along roadside trees. It was inferred that heavy traffic movements interrupt the physiological functioning of trees due to alteration in the surrounding environment as compared to non-traffic areas. The present study provides baseline information to further explore and identify the potential avenue tree species having significant mitigation potential and adaptive efficiency to heavy traffic movements for improving urban environment.

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Section: Response Of Biochemical Indicators: Lead and Proline In Leafsupporting

confidence: 91%

Section: Response Of Biochemical Indicators: Lead and Proline In Leafmentioning

confidence: 61%

Physiological functioning of Lagerstroemia speciosa L. under heavy roadside traffic: an approach to screen potential species for abatement of urban air pollution

et al. 2017

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“…In their study Lalor et al (1998) reported a wide range of Cd concentrations in non-mineralized Jamaican soils. Similarly, Salazar and Pignata (2014) reported high level of lead exceeding national and international norms in soils and native plants in Córdoba, Argentina. Uptake and transfer of heavy metals through food crops are affected by the level of metals in soils, soil properties, pH, age of food crop, food crop types and species (Rafiq et al 2014;Xu et al 2015;Yang et al 2015).…”

Section: Introductionmentioning

confidence: 94%

Bioaccumulation of heavy metals in soil and selected food crops cultivated in Kogi State, north central Nigeria

Emurotu

Onianwa

2017

Environ Syst Res

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Background: Heavy metal contamination in Nigeria soils is well documented. However, there is dearth of information on the intake of toxic heavy metals by some food crops cultivated in Nigeria soil. Accumulation of toxic heavy metals in edible food crops is a potential threat to human and animal health. Hence, a study on soil to food crop relation in terms of heavy metals accumulation is expedient. In this study, the levels of Cd, Co, Cu, Ni, Pb and Zn in soils and food crop samples from nine major commercial and individual farms were investigated for their contamination in soil and accumulation in food crops.Methods: Soil samples were collected from thirty-two farmlands at two depths of 0-15 and 15-30 cm in each farm and control site, to make 320 composite samples. A total of 640 edible food crop samples (pumpkin 64, passion fruit 96, maize grain 96, sugar cane stem 64 and tubers of cassava 320) were collected. Results:The results revealed that the levels of Cd ranged from 0.07 to 9.80 mg/kg, Co 0.05-38.1 mg/kg, Cu 0.33-16.9 mg/kg, Ni 3.81-93.1 mg/kg, Pb 4.45-47.7 mg/kg and Zn 5.02-81.4 mg/kg in topsoils. There was no significant difference (P > 0.05) in the levels of these heavy metals in subsoils and among farms. Except in pumpkin, nickel concentration in all the investigated food crops exceeded regulatory limits set by the World Health Organization and the Food and Agriculture Organization. Similarly, the concentration of Cd and Co in pumpkin exceeded regulatory limits. Soil-plant transfer factors indicated low accumulation into crops except Co in maize and Ni in cassava.Conclusion: Therefore, soil may require mild remediation action to minimize possible sources of Co and Ni contamination such as irrigation and fertilizer application practices. The concentration of Cd in food crops could be of health concern if such crops are ingested.

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“…As the uptake of Pb from the soil increases, it can damage the ultrastructures of the organs, tissues, chloroplast, mitochondria, nucleus, cell wall, and cell membrane in the plants. This damage can cause a loss of organelle function, and can eventually affect the normal physiological functions that include photosynthesis, respiration, protein synthesis, cell division within the plant species (Salazar and Pignata, 2014 (Pourrut et al, 2011). Yang and Ye (2014 ) reported significant differences among plants in their Pb tolerance and uptake in the shoots and the roots.…”

Section: Introductionmentioning

confidence: 99%

Lead Uptake and accumulation by Pharagmites australis in Hydroponic Culture

2017

IJAAEE

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Abstract--Reed plants (Pharagmites australis) may reduce heavy metals pollution of water used for irrigation of crop plants by phytoremediation. However, the accumulation of high shoot concentrations of heavy metals might increase their distribution and may harm grazing animals. The aim of this study was to investigate the characteristics of root and shoot accumulation of lead as well as its accumulation level that occur in reed plant (Pharagmites australis) that naturally grow with wetlands in the Kingdom of Saudi Arabia using a hydroponic experiment. Shoot and root parts of Pharagmites australis were sampled and analyzed for lead (Pb). Differences in uptake and translocation characteristics of the plant samples were observed between naturally-grown reed plants and plants grown in the hydroponic experiment. These differences were explained by the differences in soil x root interactions. Reed plants were found to have restricted translocation of Pb to the shoot system and the highest concentration of the element was found in the root system. In conclusion, the results of this study indicated that the results hydroponic experimental studies must be confirmed by field studies in order to find suitable plant species for phytoremediation of polluted waters. In any case, reed plants represent a safe method to reduce Pb contamination.

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Lead accumulation in plants grown in polluted soils. Screening of native species for phytoremediation

Cited by 120 publications

References 30 publications

Physiological functioning of Lagerstroemia speciosa L. under heavy roadside traffic: an approach to screen potential species for abatement of urban air pollution

Physiological functioning of Lagerstroemia speciosa L. under heavy roadside traffic: an approach to screen potential species for abatement of urban air pollution

Bioaccumulation of heavy metals in soil and selected food crops cultivated in Kogi State, north central Nigeria

Lead Uptake and accumulation by Pharagmites australis in Hydroponic Culture

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