Amenizante Orgânico e Eucalyptus grandis para Fitoestabilização de Solo Contaminado com Cobre

Marco, Rudinei De; Silva, Rodrigo Ferreira da; Scheid, Douglas Leandro; Ros, Clóvis Orlando Da; Silva, Vanderlei Rodrigues da

doi:10.1590/2179-8087.029315

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…In indirect phytoremediation, vegetables extract contaminants from groundwater, performing external degradation, reducing the source of contamination, and releasing compounds that favor microbial activity in the rhizosphere (Fellet and Marchiol 2011;Ting et al 2018;Yan et al 2020). The indirect mechanisms are i) phytostabilizationthe ability of plants to reduce the mobility or migration of contaminants present in the soilthis mechanism depends on the incorporation of the compound in soil humus or lignin; and ii) phytostimulationplants perform microbial degradation of contaminants (De Marco et al 2017;Melo et al 2010;Santos et al 2007). However, the choice of mechanisms can influence some variables, such as pH, humidity, and nutrients, which can cause disadvantages and increase the recovery time (Yan et al 2020).…”

Section: Evaluation Of Phytoremediation Mechanisms For the Treatment ...mentioning

confidence: 99%

Strategies and prospects in the recovery of contaminated soils by phytoremediation: an updated overview

Silva¹,

Rosa²,

Ferrareze³

et al. 2023

Commun. Plant. Sci.

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The contamination of soils and groundwater has attracted worldwide attention, since many contaminants are poorly biodegradable and can accumulate in living organisms, causing implications for plants, animals, and human health. The high cost of conventional remediation processes stimulates research for the development of innovative and more sustainable techniques. Likewise, phytoremediation is a cheap technology that uses plants to absorb, transform, and detoxify contaminants through in situ (phytoextraction, phytotransformation, and phytovolatilization) and ex situ mechanisms (phytostabilization and phytostimulation). Recently, phytoremediation has been adopted as a more profitable technique than physicochemical processes. Otherwise, the existence of variables, such as interactions between climate, soil, and plants, requires analysis methods for its implementation, which ensure the reduction of time and cost and improve its efficiency. Research on the application of different phytoremediation techniques is still in progress, and therefore, this study evaluated the main advantages of phytoremediation through a literature overview, comparing the most adequate remediation models in terms of economic, social, and environmental aspects. Highlighted Conclusions1. Phytoremediation consists of the use of plants and their associated microbes for environmental cleanup and recovery of contaminate soil. 2. Phytoremediation promotes social-economics benefits comparing to the conventional techniques, and ensures sustainability in environmental rehabilitation.

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Section: Evaluation Of Phytoremediation Mechanisms For the Treatment ...mentioning

confidence: 99%

Strategies and prospects in the recovery of contaminated soils by phytoremediation: an updated overview

Silva¹,

Rosa²,

Ferrareze³

et al. 2023

Commun. Plant. Sci.

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“…Regarding plant species, the Eucalyptus genus encompasses more than 600 species, presents good adaptation to the Brazilian climatic conditions, with relatively fast growth and development, and large biomass production (Magalhães et al, 2011). However, studies by De Marco et al (2017) have showed that the Eucalyptus grandis seedlings have high capacity to accumulate Cu in their root system, which would enable its use for phytostabilization, but there are still few studies including the use of different eucalyptus species.…”

Section: Introduction and Objectivesmentioning

confidence: 99%

Growth and Tolerance of Eucalyptus Seedlings in Soil Contaminated by Copper

et al. 2020

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Copper damages plants when present in high concentrations in the soil. This study assessed the growth and tolerance of Eucalyptus grandis, E. saligna, E. dunnii, and Corymbia citriodora seedlings in soil contaminated by copper. The experimental design was completely randomized in a factorial scheme (4 × 6), with four eucalyptus species and six copper doses (0, 80, 160, 240, 320, 400 mg kg -1 ) with eight replications. The experiment was performed in a greenhouse for 120 days. The height, stem diameter, root dry mass and shoot dry mass, root specific surface area, Dickson quality index, and tolerance index were assessed. The results showed that the morphological parameters of the studied eucalyptus species were reduced by the copper doses added in the soil. However, the Corymbia citriodora and the Eucalyptus saligna species had a higher tolerance index to the metal.

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“…In plants, high copper levels induce decreased growth, chlorosis and foliar necrosis (ANJUM et al, 2015). Metal toxicity is evident in the reduced root length, biomass and production of photosynthetic pigments, as well as a decline in the absorption of essential nutrients by the plants (DE MARCO et al, 2017;XU et al, 2017). According to CAETANO et al, (2016), 28mg kg -1 (USEPA method) are damaging to the development of plants and other soil organisms.…”

Section: Introductionmentioning

confidence: 99%

Differential behavior of the summer cover crops in the absorption and translocation of copper

et al. 2018

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Phytoremediation is an alternative technique used to treat copper-contaminated soils. The objective of this research was to explore the behavior of nine summer cover crops regarding the growth, absorption and translocation of copper in soils with contamination levels exceeding the Value of Prevention, with a view to selecting plants for phytoremediation programs. In the experiments the Cambisol was contaminated with copper, added in doses of 0, 100, 200, 400, 500 and 600mg kg-1, in which the following nine plants were cultivated under greenhouse conditions: Canavalia ensiformis, Cajanus cajan, Dolichos lablad, Mucuna cinereum, Mucuna aterrima, Crotalaria juncea, Crotalaria spectabilis, Pennisetum glaucum and Paspalum notatum. At 90 days after sowing the plants were evaluated for dry mass of shoot and root, Cu, N, P, K, Ca, Zn, and Fe levels in the shoot and Cu in the roots. High soil Cu levels induced a decline in the phosphorus absorption by the plants. Canavalia ensiformis displayed high potential for phytoextraction as these plants could translocate high copper concentrations to the aerial plant parts, while the Mucuna cinereum and M. aterrima are indicated for the copper phytostabilization programs, due to the high copper accumulation in their root systems.

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Amenizante Orgânico e Eucalyptus grandis para Fitoestabilização de Solo Contaminado com Cobre

Cited by 6 publications

References 23 publications

Strategies and prospects in the recovery of contaminated soils by phytoremediation: an updated overview

Strategies and prospects in the recovery of contaminated soils by phytoremediation: an updated overview

Growth and Tolerance of Eucalyptus Seedlings in Soil Contaminated by Copper

Differential behavior of the summer cover crops in the absorption and translocation of copper

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