Desempenho da mucuna preta (Mucuna aterrima Piper &amp; Tracy) na fitorremdiação de solo contaminado com chumbo

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

doi:10.18227/1982-8470ragro.v6i3.705

Cited by 4 publications

(5 citation statements)

References 15 publications

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“…The Pb concentration was lowest in forage peanut roots showing a significant increase in Pb translocation to the leaves (Figure 3). This finding is contrary to those reported by Santos et al (2012) and Romeh et al (2016) who reported higher amounts of lead in roots than in shoots.…”

Section: Shoot Dry Matter (Sm) and Root Dry Matter (Rm)contrasting

confidence: 99%

“…However, Pb rates linearly reduced the root dry matter (Figure 2). Reductions of dry matter production in many plant species as a function of doses of Pb in experiments with soil and nutrient solution were reported by other authors (Paiva et al, 2002;Sharma and Dubey, 2005;Lindino et al, 2012;Santos et al, 2012;Redovniković et al, 2017). In the current study the lead rates did not influence shoot dry matter production, which was similarly reported by Lindino et al (2012) for Crotalaria spectabilis.…”

Section: Shoot Dry Matter (Sm) and Root Dry Matter (Rm)supporting

confidence: 89%

“…In soils contaminated by Pb plants may present physiological disorders such as decreased biomass, chlorosis, inhibition of photosynthesis, and changes in water and hormonal balance (Paiva et al, 2002;Sharma and Dubey, 2005). However, some plant species have tolerance to this toxic effect, like Mimosa caesalpiniaefolia (Souza, 2010), Mucuna aterrima (Santos et al, 2012), Populus nigra (Redovniković et al, 2017) and Ricinus communis (Kiran and Prasad, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Tolerance of lead by forage peanut cultivated in two soil classes

Santos

Almeida

et al. 2019

Rev. ambiente água

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This work evaluated the potential of lead (Pb) phytoextraction by forage peanut, Arachis pintoi, cultivated on an Oxisol and a Gleysol. The samples of these soils received Pb as lead acetate heptahydrate (Pb(C2H3O2)2.7H2O) at rates of 0, 150 and 300 mg kg -1 . The plants were cultivated in pots filled with Pb contaminated soil, and 105 days after planting were collected to determine shoot and root dry matter. Lead contents in soil and plant samples were determined using an atomic absorption spectrophotometer. Lead did not affect shoot dry matter yield in both soil classes, but linearly reduced root dry matter. The highest Pb concentration in the plant was detected in the A. pintoi shoot. This species is not a Pb accumulator but may be considered Pb tolerant and is indicated for revegetation programs in Pb-polluted soils.

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Section: Shoot Dry Matter (Sm) and Root Dry Matter (Rm)contrasting

confidence: 99%

Section: Shoot Dry Matter (Sm) and Root Dry Matter (Rm)supporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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Tolerance of lead by forage peanut cultivated in two soil classes

Santos

Almeida

et al. 2019

Rev. ambiente água

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“…Nesse caso, a utilização de plantas remediadoras surge como alternativa para acelerar a degradação dos herbicidas. Várias pesquisas, tanto no Brasil quanto no exterior, têm demonstrado a efeciência dessa técnica em diversos ecossistemas contaminados com compostos orgânicos e inorgânicos (MADALÃO et al, 2012a, b;SANTOS et al, 2012;MITTER et al, 2013;OLIVEIRA et al, 2014;MITTON et al, 2014).…”

Section: Introductionunclassified

Fitorremediação de solo contaminado com sulfentrazone em função do tempo de cultivo de Canavalia ensiformis

Madalão

Pires

Nascimento

et al. 2016

AGRO@MBIENTE ON-LINE

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Resumo: A fitorremediação é uma alternativa para a descontaminação de áreas que receberam intensas aplicações de herbicidas. Determinar o período mínimo que as espécies devem permanecer remediando o solo é fundamental para a otimização das áreas a serem cultivadas sem riscos de carryover. Objetivouse com este trabalho avaliar o tempo de cultivo de Canavalia ensiformis em solos contaminados com o herbicida sulfentrazone, de modo que essa espécie remedie o solo em níveis satisfatórios. O experimento foi instalado em casa de vegetação, utilizando-se vasos de 10 dm 3 ; e conduzido no delineamento em blocos cazualizados, em esquema fatorial (5 x 2), com quatro repetições. Os fatores consistiram de cinco períodos de fitorremediação, ou seja, de tempos de cultivo da fitorremediadora (0, 25, 50, 75 e 100 dias após a semeadura) e dois níveis de sulfentrazone (com herbicida na dose de 400 g ha -1 e sem herbicida). A espécie bioindicadora foi a Pennisetum glaucum, cultivada por 42 DAS. Ao longo desse período foram avaliadas as seguintes variáveis: altura de plantas (cm); toxicidade visual (%), utilizando escala que varia de 0 a 100, para ausência de sintomas e morte da planta, respectivamente; e matéria seca da parte aérea (g). Com 75 dias de cultivo da espécie fitorremediadora, não houve diferença entre o solo que recebeu aplicação de herbicida e aquele sem aplicação para as variáveis toxicidade visual, altura e matéria seca da parte aérea da espécie bioindicadora. A C. ensiformis precisa ser cultivada por um período mínimo de 75 dias para descontaminar à níveis satisfatórios solos com o sulfentrazone.Palavras-chave: Bioensaio. Descontaminação. Fitotoxicidade. Residual de herbicidas. Abstract:Phytoremediation is an option for the decontamination of areas that have received intensive applications of herbicide. Determining the minimum period that a species should remain for remediation of the soil is critical for the optimisation of areas to be cultivated without the risks of carryover. The aim of this study was to evaluate the cultivation time of Canavalia ensiformis in soil contaminated with the herbicide sulfentrazone, for the species to remediate the soil to satisfactory levels. The experiment was set up in a greenhouse, using 10 dm 3 pots in a randomised block design and a 5 x 2 factorial scheme, with four replications. The factors comprised five periods of phytoremediation, i.e. cultivation times of the green-manure species of phytoremediator (0, 25, 50, 75 and 100 days after sowing -DAS), cultivated both with and without the presence of sulfentrazone (400 g ha -1 ). The species of bio-indicator was Pennisetum glaucum, grown for 42 DAS. During this period the following variables were evaluated: plant height (cm); visual toxicity (%), using a scale from 0 to 100 for the absence of symptoms and death of the plant respectively; and shoot dry matter (g). At 75 days of growth of the phytoremediator species, there was no difference between the soil that received the herbicide application and the soil with no application, f...

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“…In fact, several research works have been performed on plant species used as possible lead phytoremediation, such as: Pistia stratiotes (OLIVEIRA, 2010), Leucaena leucocephala (BOURLEGAT et al, 2008), Eichhornia crassipes (PEREIRA, 2010;OLIVEIRA et al, 2014), Stizolobium aterrimum , Pluchea sagittalis (ROSSATO, 2010), Ricinus communis (LIMA, 2010b), Helianthus annuus (LIMA, 2010), Canavalia ensiformis (ROMEIRO et al, 2007), Mucuna aterrima (SANTOS et al, 2012), Jatropha curcas (GOUVEIA et al, 2015), Salvinia auriculata (ALMEIDA, 2014). (PEREIRA, 2010), and the metal accumulation in the aerial part of the plant .…”

Section: Lead Remediation In the Environmentmentioning

confidence: 99%

Lead in Plants: A Brief Review of Its Effects, Mechanisms Toxicological and Remediation

Silva¹,

Santos²,

Guilherme³

2015

Agrarian Academy

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Environmental pollution by toxic heavy metals is one of the most serious issues that world populations have to cope with. In fact, it occurs in industrial and in agricultural regions. Lead is one of the most toxic for humans and plants with great damage for the environment. Phytotoxic activities have been registered in scientific literature by several researchers who reported its effects in many vegetal species. In fact, lead accumulation in the soil causes damage to the development of plants due to a greater concentration in the roots and distributes itself to several tissues. When absorbed by the plant can be distributed to different tissues by means of a complex network of homeostasis, causing molecular and biochemical disorders. Despite the high toxicity of lead, some plant species have been tolerant of its presence and may be used in the decontamination of soil by phytoremediation. Current research is a revision of the literature on the ecotoxicological effects of heavy metals, especially lead, and present the current technical soil remediation contaminated by the metal. KEYWORDS: contamination, heavy metal, pollutant. CHUMBO NAS PLANTAS: UMA BREVE REVISÃO SOBRE SEUS EFEITOS,MECANISMOS TOXICOLÓGICOS E REMEDIAÇÃO RESUMO A poluição ambiental por metais pesados tóxicos é um dos graves problemas enfrentados pela população mundial, estando presente nas indústrias e nas regiões agrícolas. Dentre os metais pesados, o chumbo tem sido um dos mais tóxicos para o homem e para as plantas, causando grandes preocupações ambientais. A sua ação fitotóxica tem sido reportada na literatura científica por diversos pesquisadores, que têm verificado os seus efeitos em diversas espécies de plantas. O chumbo tende a acumular no solo provocando danos ao desenvolvimento das plantas, principalmente nos tecidos radiculares. Entretanto, uma vez absorvido pelo vegetal, pode se distribuir para os diferentes tecidos por meio de uma complexa rede de homeostase, causando distúrbios bioquímico e molecular. Apesar da alta toxicidade do chumbo, algumas espécies de plantas têm apresentado tolerância a se desenvolver em sua AGRARIAN ACADEMY, Centro Científico Conhecer -Goiânia, v.2, n.03; p. 2015 2 presença, sendo estudadas como prováveis remediadoras do solo contaminado, por meio da técnica de fitorremediação. O objetivo dessa pesquisa foi fazer uma revisão de literatura sobre os mecanismos e efeitos toxicológicos dos metais pesados, particularmente do chumbo, nas plantas, assim como apresentar técnicas atuais que buscam remediar o solo contaminado por esse metal. PALAVRAS-CHAVE: contaminação, metal pesado, poluente.

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Desempenho da mucuna preta (Mucuna aterrima Piper & Tracy) na fitorremdiação de solo contaminado com chumbo

Cited by 4 publications

References 15 publications

Tolerance of lead by forage peanut cultivated in two soil classes

Tolerance of lead by forage peanut cultivated in two soil classes

Fitorremediação de solo contaminado com sulfentrazone em função do tempo de cultivo de Canavalia ensiformis

Lead in Plants: A Brief Review of Its Effects, Mechanisms Toxicological and Remediation

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