Phytoremediation potential of Brassica juncea in Cu-pyrene co-contaminated soil: Comparing freshly spiked soil with aged soil

Chigbo, Chibuike; Batty, Lesley

doi:10.1016/j.jenvman.2013.05.041

Cited by 27 publications

(7 citation statements)

References 33 publications

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“…How to improve the accumulation of heavy metals in plants is also becoming a focus of current research. Some studies showed that the ageing of soil had a significant influence on the mobility and the bioavailability of heavy metals [21]- [25], and subsequently influenced plant uptake during phytoremediation. Soil microbes played significant roles in recycling of plant nutrients, maintenance of soil structure, detoxification of noxious chemicals [22], [26], altering metal bioavailability in the soil [20], [27].…”

Section: Discussionmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Wang¹,

Li²,

Guo³

et al. 2016

IJESD

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Abstract-Phytoremediation is becoming a potential method for remediation of heavy metal contaminated soil. The aim of this study is to discuss whether the sorrel absorbs copper (Cu) from the soil, and whether arbuscular mycorrhizal fungi (AMF) inoculation enhances its capacity of Cu uptake. The experiment was conducted in plastic pots with three treatments: control, 600 mg/kg Cu, and 600 mg/kg Cu plus 10 g AMF. The results showed that the sorrel accumulated Cu when planted in Cu contaminated soil. Furthermore, the more uptake Cu, the more nitrogen (N) and phosphorus (P) was absorbed. When the sorrel was under copper stress, its peroxidase (POD) and catalase (CAT) activities increased, while superoxide dismutase (SOD) activity decreased compared with the control. Chlorophyll (Chl) content decreased under copper stress, but no significant differences were observed in malondialdehyde (MDA) content. Although Cu stress inhibited the activity of soil urease, it didn't affect activities of soil cellulose, soil sucrase, and soil catalase. It also showed that AMF inoculation promoted the growth of sorrel, enhanced the capacity of Cu, N, P, and potassium (K) uptake, but it didn't affect MDA and Chl content, POD activity , and CAT activities of sorrel. However, SOD activity was inhibited a little bit. The results also showed that AMF enhanced the activity of soil urease, inhibited activities of soil cellulose and soil sucrase. But it didn't influence the activity of soil CAT. It concluded that this sorrel was a Cu accumulating plant and AMF inoculation improved its capacity of Cu uptake.

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Section: Discussionmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Wang¹,

Li²,

Guo³

et al. 2016

IJESD

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“…Hence field application of this work would require consideration of appropriate fertilisation regimes to ensure on site phytoremediation success, especially as aged hydrocarbons could potentially be harder to remove from the soil than freshly spiked soil (Chigbo and Batty, 2013).…”

Section: Discussionmentioning

confidence: 99%

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

Bramley-Alves

Wasley

King

et al. 2014

Journal of Environmental Management

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Accidental fuel spills on world heritage subantarctic Macquarie Island have caused considerable contamination. Due to the island's high latitude position, its climate, and its fragile ecosystem, traditional methods of remediation are unsuitable for on-site clean up. We investigated the tolerance of a subantarctic native tussock grass, Poa foliosa (Hook. f.), to Special Antarctic Blend (SAB) diesel fuel and its potential to reduce SAB fuel contamination via phytoremediation. Toxicity of SAB fuel to P. foliosa was assessed in an 8 month laboratory growth trial under growth conditions which simulated the island's environment. Single seedlings were planted into 1 L pots of soil spiked with SAB fuel at concentrations of 1000, 5 000, 10 000, 2000 and 40 000 mg/kg (plus control). Plants were harvested at 0, 2, 4 and 8 months and a range of plant productivity endpoints were measured (biomass production, plant morphology and photosynthetic efficiency). Poa foliosa was highly tolerant across all SAB fuel concentrations tested with respect to biomass, although higher concentrations of 20 000 and 40 000 mg SAB/kg soil caused slight reductions in leaf length, width and area. To assess the phytoremediation potential of P. foliosa (to 10 000 mg/kg), soil from the planted pots was compared with that from paired unplanted pots at each SAB fuel concentration. The effect of the plant on SAB fuel concentrations and the associated microbial communities found within the soil (total heterotrophs and hydrocarbon degraders) were compared between planted and unplanted treatments at the 0, 2, 4 and 8 month harvest periods. The presence of plants resulted in significantly less SAB fuel in soils at 2 months and a return to background concentration by 8 months. Microbes did not appear to be the sole driving force behind the observed hydrocarbon loss. This study provides evidence that phytoremediation using P. foliosa is a valuable remediation option for use at Macquarie Island, and may be applicable to the management of fuel spills in other cold climate regions. AbstractAccidental fuel spills on world heritage subantarctic Macquarie Island have caused considerable contamination. Due to the island's high latitude position, its climate, and its fragile ecosystem, traditional methods of remediation are unsuitable for on-site clean up. We investigated the tolerance of a subantarctic native tussock grass, Poa foliosa (Hook. f.), to Special Antarctic Blend (SAB) diesel fuel and its potential to reduce SAB fuel contamination via phytoremediation. Toxicity of SAB fuel to P. foliosa was assessed in an 8 month laboratory growth trial under growth conditions which simulated the island's environment. Single seedlings were planted into 1 L pots of soil spiked with SAB fuel at concentrations of 1 000, 5 000, 10 000, 20 00 and 40 000 mg/kg (plus control). Plants were harvested at 0, 2, 4 and 8 months and a range of plant productivity endpoints were measured (biomass production, plant morphology and photosynthetic efficiency). Poa foliosa was highl...

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“…Some of the results showed a successful phytoremediation affects. However, phytoremediation with aged soil is lower compare to freshly contaminated soil (Chigbo and Batty 2013). …”

Section: Petroleum Hydrocarbons Degradationmentioning

confidence: 91%

Phytoremediation of petroleum hydrocarbons contaminated soils with alfalfa (Medicago sativa)

Marchand¹,

Kaczala²,

Jani³

et al. 2017

Eco-Tech

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Underground storage tanks uses for waste cars draining contain many hazardous materials including hydrocarbons. These compounds pose a significant threat to the environment and affect negatively the health of living. Phytoremediation is an environmental friendly method used during the last few decades to eliminating organics pollutants from soil, sediment and water. The remediation capability of alfalfa (Medicago sativa) to treat petroleum-contaminated soil from an old car scrap yard in Nybro, Sweden was further investigated using greenhouse pot-scale experiments. After five months, alfalfa survival capacity and dry biomass were significantly lower in contaminated soil (CS) in comparison to non-contaminated soil (NCS). Only 5% of plants survived in CS and petroleum hydrocarbon C10-C50 content in planted treatment were not statistically lower in comparison to the unplanted treatment. Further studies are in process to evaluate the possible degradation of hydrocarbons using organic amendment

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Phytoremediation potential of Brassica juncea in Cu-pyrene co-contaminated soil: Comparing freshly spiked soil with aged soil

Cited by 27 publications

References 33 publications

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Effects of Arbuscular Mycorrhizal Fungi Inoculation on a Wild Type Sorrel (Rumex acetosa) under Copper Stress

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

Phytoremediation of petroleum hydrocarbons contaminated soils with alfalfa (Medicago sativa)

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