Potencial de fitoextração de Pb por mamoneiras em solo contaminado

Santos, Carlos Henrique dos; Garcia, André Luis de Oliveira; Calonego, Juliano Carlos; Spósito, Thadeu Henrique Novais; Rigolin, Isabela Marega

doi:10.5433/1679-0359.2012v33n4p1427

Cited by 3 publications

(2 citation statements)

References 9 publications

(3 reference statements)

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“…The result soil was 30 Garcia, Colonego, Sposito, & Rigolin, 2012), but similar to studies with Carex rostrata, Eriophorum angustifolium, Phragmites australis and Canavalia ensiformes (all of which showed similar growth across different lead concentrations in the soil) (Stoltz & Greger, 2002;Almeida, Marcos, Schiavinato, Lagoa, & Abreu, 2008). Plants share a common ability to prolong survival when in contact with excessive trace elements in their environments (Kabata-Pendias & Pendias, 2000).…”

Section: Resultssupporting

confidence: 72%

Phytoremediation Potential of Crotalaria juncea Plants in Lead-Contaminated Soils

Silva¹,

Macêdo²,

Soares³

et al. 2021

JAS

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Soil pollution by highly toxic metals (such as lead, Pb) derived from human activities has become a serious problem in recent years. Phytoremediation is a technique that uses plants or microorganisms to remedy such toxicity from contaminated soils and water. This study aimed to evaluate the efficiency of the legume Crotalaria juncea as a phytoremediator of lead-contaminated soils. We evaluated plant growth and lead content in the soil andin C. juncea’s leaves and roots. Three treatments with varying concentrations of lead in the soil were evaluated: 0 mg kg-1 (control), 250 mg kg-1, and 500 mg kg-1. Plant growth and plant physical aspects were quantified. Metal concentration in the soil, leaves, and roots was assessed by atomic absorption spectrometry. The species had a survival rate of 100%. The highest content of lead was found in the plants’ roots. Plant growth did not differ significantly among the three treatments, leaf lead concentration did. Crotalaria juncea has potential for lead phytoremediator. In addition, it is a tolerant vegetal and hyperaccumulator of Pb, mainly in the roots, and due to these characteristics its potential for phytoextraction of this metal under field conditions should be evaluated.

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Section: Resultssupporting

confidence: 72%

Phytoremediation Potential of Crotalaria juncea Plants in Lead-Contaminated Soils

Silva¹,

Macêdo²,

Soares³

et al. 2021

JAS

View full text Add to dashboard Cite

show abstract

“…As plantas que realizam esse mecanismo são denominadas hiperacumuladoras, devido a sua capacidade de tolerar concentrações elevadas de metais em seus tecidos. 18 Figura 2. Mecanismo de fitoextração em espécies florestais.…”

Section: Fitorremediação E Sua Aplicação Atualunclassified

Phytoremediation of Soils Contaminated with Metals: Current Outlook and Prospects of use of Forest Species

Silva

Hansted

Tonello³

et al. 2019

Rev. Virtual Quim.

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Phytoremediation is a technique that uses plants to recover contaminated soils. This method has advantages because of its permanent nature, combined with low maintenance costs, protection against wind and water erosion and greater soil structure. Currently, most of the researches related to species capable of phytoremediation of soil contaminated with metals work with annual cycle plant species. However, due to limitations found in these species, the possibility of using forest species in phytoremediation programs is increasingly projected. Be suitable for revegetation of contaminated areas and also provide economic return. The purpose of this review was to present the main techniques of phytoremediation used and to analyze the perspectives of the use of forest species in phytoremediation programs. The reports in the literature point out several of these species with real capacity of use, in addition they have been pointed as tolerant to soils in stages of great contamination, and their capacity of fixation of contaminant in their structures for a longer time in relation to vegetal species of annual cycle. The limiting factor in the full use of these species is still the small number of researches, which consequently causes many effective species to no longer be identified for phytoremediation.

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Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation

Kiran

Prasad

2017

The EuroBiotech Journal

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Phytoremediation is a plant based environmental cleanup technology to contain (rendering less toxic), sequester and degrade contaminated susbtrates. As can be seen from data metrics, it is gaining cosiderable importance globally. Phytoremediation approach is being applied for cleanup of inorganic (potentially toxic metals), organic (persistent, emergent, poly-acromatic hydrocarbons and crude oil etc.) and co-contaminated (mixture of inorganic and organic) and/or polluted sites globally. Recently new approaches of utilizing abundantly available natural organic amendments have yielded significant results. Ricinus communis L. (Castor bean) is an important multipurpose crop viz., Agricultural, Energy, Environmental and Industrial crop. The current status of knowledge is abundant but scattered which need to be exploited for sustainable development. This review collates and evaluates all the scattered information and provides a critical view on the possible options for exploiting its potential as follows: 1. Origin and distribution, 2. Lead toxicity bioassays, 3. Progress in arbuscular mycorrhizal fungi-assisted phytoremediation, 4. Promising bioenergy crop that can be linked to pytoremediation, 5. A renewable source for many bioproducts with rich chemical diversity, 6. It is a good biomonitor and bioindicator of atmospheric pollution in urban areas, 7. Enhanced chelate aided remediation, 8. Its rhizospheric processes accelerate natural attenuation, 9. It is suitable for remediation of crude oil contaminated soil, 10. It is an ideal candidate for aided phytostabilization, 11. Castor bean is a wizard for phytoremediation and 12. Its use in combined phytoextraction and ecocatalysis. Further, the knowledge gaps and scope for future research on sustainable co-generation of value chain and value addition biobased products for sustainable circular economy and environmental security are described in this paper.

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Potencial de fitoextração de Pb por mamoneiras em solo contaminado

Cited by 3 publications

References 9 publications

Phytoremediation Potential of Crotalaria juncea Plants in Lead-Contaminated Soils

Phytoremediation Potential of Crotalaria juncea Plants in Lead-Contaminated Soils

Phytoremediation of Soils Contaminated with Metals: Current Outlook and Prospects of use of Forest Species

Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation

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